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Legend - object IDs plus links to more info

Data compiled at 1721 UTC on 29 Sept. 2014 for 28 known objects during a period of seven days from 26 Sept. to 2 Oct. 2014. Orange is for objects with a new JPL orbit solution (usually from new observation).

Chart
ID

Full ID
Period
Closest
Passage
Uncertainty

Status
FV92010 FV916.61 LDapproaching
MF62014 MF6164.94 LDdeparted
OZ3372014 OZ337193.81 LDdeparted
QH332014 QH3364.58 LDdeparted
QV2962014 QV296109.2 LDdistant observation
RW182014 RW1811.58 LDdeparted
RZ532013 RZ535.5 LD+/- 20 minutesoutbound
SB1452014 SB1456.66 LD+/- 2 minutesapproaching
SB2242014 SB2249.60 LDdeparted
SC1452014 SC1457.67 LDdeparted
SD1452014 SD1456.13 LDoutbound
SE1452014 SE1457.77 LDdeparted
SG12014 SG116.39 LDdeparted intruder
SH2242014 SH2242.25 LDpassing
SN1422014 SN1428.34 LDdeparted
SO1422014 SO14223.62 LDdeparted
SR2232014 SR22314.14 LDdeparted
SR2612014 SR26125.3 LD+/- 18 minutesdeparted
SS12014 SS125.50 LDdeparted
SS1432014 SS1433.61 LDpassing
SS2232014 SS22314.78 LDdeparted
SS2602014 SS2602.79 LD+/- one minuteoutbound
SS2612014 SS2616.35 LDoutbound
ST2232014 ST2237.14 LDdeparted
SU2232014 SU2232.03 LDoutbound
SZ1442014 SZ1443.89 LDpassing
TB42011 TB421.3 LD+/- 1.821 daysapproaching
UV1362012 UV13639.2 LDdistant observation
DateTfc.Time
26 Sept. '14Rept. Line
27 Sept. '14Rept. Line
28 Sept. '14Rept. Line
29 Sept. '14Rept. Line
30 Sept. '14Rept. Line
1 Oct. '14 Line
2 Oct. '14 Line

Object Details - Skychart objects presented in reverse designation order, newest first
  ("designation assigned to" indicates unofficial discovery credit)

2014 SS261   -   outbound
Approximate diameter18 meters (H=26.387)
Closest Earth approach6.35 LD at 0952 UT on 28 Sept. 2014
Inside ten LD of Earth22 Sept. until 4 Oct. 2014
Data based onJPL SSD orbit solution #2 downloaded from JPL on 28 Sept. 2014 UTC
based on 36 observations spanning one day
Optical observation  
  • reported from 8 observing codes during 1.3108 days: 595, 703, 900, 958, B04, G96, H21, W86
  • designation assigned to Catalina Sky Survey observation at 0712 UT 26 Sept. 2014
  • last observed at 1440 UT on 27 Sept. 2014 by Moriyama Obs.
Links  
2014 SR261   -   departed
Approximate diameter14 meters (H=26.869)
Closest Earth approach1.85 LD at 1748 UT on 18 Sept. 2014 - Note: JPL reports an approach uncertainty of +/- 18 minutes
Inside Earth SOI18 to 19 Sept. 2014
Inside ten LD of Earth15 to 21 Sept. 2014
Closest Moon approach2.86 LD at 1600 UT on 18 Sept. 2014
Data based onJPL SSD orbit solution #1 downloaded from JPL on 27 Sept. 2014 UTC
based on 16 observations spanning 2 days
Optical observation  
  • reported from 3 observing codes during 1.9908 days: G96, H21, K93
  • designation assigned to Mt. Lemmon Survey observation at 0709 UT 25 Sept. 2014
  • last observed at 0656 UT on 27 Sept. 2014 by the Mt. Lemmon Survey
Notesrisk
Links  
2014 SS260   -   outbound
Approximate diameter16 meters (H=26.638)
Closest Earth approach2.79 LD at 1948 UT on 28 Sept. 2014
Inside ten LD of Earth25 Sept. until 2 Oct. 2014
Data based onJPL SSD orbit solution #1 downloaded from JPL on 26 Sept. 2014 UTC
based on 19 observations spanning one day
Optical observation  
  • reported from 4 observing codes during 23.801 hours: G96, H21, H36, I93
  • designation assigned to Mt. Lemmon Survey observation at 0455 UT 25 Sept. 2014
  • last observed at 0443 UT on 26 Sept. 2014 by ARO Westfield
Links  
2014 SH224   -   passing
Approximate diameter20 meters (H=26.092)
Closest Earth approach2.25 LD at 1644 UT on 29 Sept. 2014
Inside Earth SOI29 to 30 Sept. 2014
Inside ten LD of Earth25 Sept. until 3 Oct. 2014
Closest Moon approach2.52 LD at 1756 UT on 29 Sept. 2014
Data based onJPL SSD orbit solution #4 downloaded from JPL on 29 Sept. 2014 UTC
based on 25 observations spanning 9 days
Optical observation  
  • reported from 5 observing codes during 9.2913 days: 474, 568, 595, 958, F51
  • first observed at 0902 UT on 19 Sept. 2014 by Pan-STARRS 1
  • designation assigned to Pan-STARRS 1 observation at 0928 UT 23 Sept. 2014
  • last observed at 1601 UT on 28 Sept. 2014 by Mt. John Obs.
Links  
2014 SB224   -   departed
Approximate diameter19 meters (H=26.302)
Closest Earth approach2.01 LD at 1345 UT on 22 Sept. 2014
Inside Earth SOI22 to 23 Sept. 2014
Inside ten LD of Earth19 to 26 Sept. 2014
Closest Moon approach1.21 LD at 0747 UT on 22 Sept. 2014
Data based onJPL SSD orbit solution #1 downloaded from JPL on 25 Sept. 2014 UTC
based on 30 observations spanning one day
Optical observation  
  • reported from 7 observing codes during 24.970 hours: 703, 958, G96, H21, I93, J95, L04
  • designation assigned to Catalina Sky Survey observation at 0845 UT 24 Sept. 2014
  • last observed at 0943 UT on 25 Sept. 2014 by the Mt. Lemmon Survey
Links  
2014 SU223   -   outbound
Approximate diameter13 meters (H=27.05)
Closest Earth approach2.03 LD at 1022 UT on 26 Sept. 2014
Inside Earth SOI25 to 26 Sept. 2014
Inside ten LD of Earth23 to 29 Sept. 2014
Closest Moon approach2.16 LD at 1548 UT on 26 Sept. 2014
Data based onJPL SSD orbit solution #3 downloaded from JPL on 26 Sept. 2014 UTC
based on 31 observations spanning one day
Optical observation  
  • reported from 7 observing codes during 22.469 hours: 703, 850, 958, G48, H21, I93, J95
  • designation assigned to Catalina Sky Survey observation at 0443 UT 24 Sept. 2014
  • last observed at 0311 UT on 25 Sept. 2014 by ARO Westfield
Links  
2014 ST223   -   departed
Approximate diameter10 meters (H=27.656)
Closest Earth approach1.95 LD at 0239 UT on 21 Sept. 2014
Inside Earth SOI20 to 22 Sept. 2014
Inside ten LD of Earth14 to 28 Sept. 2014
Closest Moon approach1.91 LD at 1203 UT on 20 Sept. 2014
Data based onJPL SSD orbit solution #6 downloaded from JPL on 29 Sept. 2014 UTC
based on 30 observations spanning 5 days
Optical observation  
  • reported from 7 observing codes during 5.5142 days: 703, H21, H36, I41, I93, J95, L04
  • designation assigned to Palomar Transient Factory observation at 0833 UT 23 Sept. 2014
  • last observed at 2054 UT on 28 Sept. 2014 by Great Shefford Obs.
Links  
2014 SS223   -   departed
Approximate diameter20 meters (H=26.129)
Closest Earth approach3.33 LD at 1401 UT on 21 Sept. 2014
Inside ten LD of Earth18 to 24 Sept. 2014
Data based onJPL SSD orbit solution #2 downloaded from JPL on 29 Sept. 2014 UTC
based on 26 observations spanning 5 days
Optical observation  
  • reported from 4 observing codes during 5.1917 days: 291, 474, 703, I93
  • designation assigned to Catalina Sky Survey observation at 0640 UT 24 Sept. 2014
  • last observed at 1116 UT on 29 Sept. 2014 by the Spacewatch 1.8m telescope
Links  
2014 SR223   -   departed
Approximate diameter16 meters (H=26.667)
Closest Earth approach5.35 LD at 2243 UT on 21 Sept. 2014
Inside ten LD of Earth19 to 24 Sept. 2014
Data based onJPL SSD orbit solution #4 downloaded from JPL on 29 Sept. 2014 UTC
based on 44 observations spanning 5 days
Optical observation  
  • reported from 6 observing codes during 5.2672 days: 291, 474, 703, G96, H21, J95
  • designation assigned to Catalina Sky Survey observation at 0436 UT 24 Sept. 2014
  • last observed at 1101 UT on 29 Sept. 2014 by the Spacewatch 1.8m telescope
Notesrisk
Links  
2014 SE145   -   departed
Approximate diameter12 meters (H=27.248)
Closest Earth approach3.85 LD at 1411 UT on 22 Sept. 2014
Inside ten LD of Earth17 to 27 Sept. 2014
Data based onJPL SSD orbit solution #3 downloaded from JPL on 26 Sept. 2014 UTC
based on 16 observations spanning 3 days
Optical observation  
  • reported from 7 observing codes during 2.8455 days: 104, 291, 474, F51, H21, I41, J95
  • first observed at 0557 UT on 22 Sept. 2014 by Pan-STARRS 1
  • designation assigned to Palomar Transient Factory observation at 0637 UT 23 Sept. 2014
  • last observed at 0214 UT on 25 Sept. 2014 by Great Shefford Obs.
Links  
2014 SD145   -   outbound
Approximate diameter14 meters (H=26.954)
Closest Earth approach3.72 LD at 1423 UT on 21 Sept. 2014
Inside ten LD of Earth13 to 29 Sept. 2014
Data based onJPL SSD orbit solution #2 downloaded from JPL on 25 Sept. 2014 UTC
based on 48 observations spanning 2 days
Optical observation  
  • reported from 10 observing codes during 1.8933 days: 113, 203, 291, 850, 958, A24, C44, F51, G96, H21
  • first observed at 1024 UT on 22 Sept. 2014 by Pan-STARRS 1
  • designation assigned to Mt. Lemmon Survey observation at 0921 UT 23 Sept. 2014
  • last observed at 0751 UT on 24 Sept. 2014 by Cordell-Lorenz Obs.
Links  
2014 SC145   -   departed
Approximate diameter24 meters (H=25.793)
Closest Earth approach7.60 LD at 1402 UT on 25 Sept. 2014
Inside ten LD of Earth23 to 28 Sept. 2014
Data based onJPL SSD orbit solution #3 downloaded from JPL on 29 Sept. 2014 UTC
based on 44 observations spanning 5 days
Optical observation  
  • reported from 8 observing codes during 5.5313 days: 160, 204, 474, 850, F51, H21, I41, J95
  • designation assigned to Palomar Transient Factory observation at 0326 UT 23 Sept. 2014
  • last observed at 1611 UT on 28 Sept. 2014 by Mt. John Obs.
Links  
2014 SB145   -   approaching
Approximate diameter18 meters (H=26.429)
Closest Earth approach4.42 LD at 0240 UT on 6 Oct. 2014 - Note: JPL reports an approach uncertainty of +/- 2 minutes
Inside ten LD of Earth30 Sept. until 11 Oct. 2014
Data based onJPL SSD orbit solution #3 downloaded from JPL on 27 Sept. 2014 UTC
based on 15 observations spanning 5 days
Optical observation  
  • reported from 4 observing codes during 4.8054 days: 568, F51, H21, H36
  • designation assigned to Pan-STARRS 1 observation at 1132 UT 22 Sept. 2014
  • last observed at 0652 UT on 27 Sept. 2014 by Sandlot Obs.
Links  
2014 SZ144   -   passing
Approximate diameter30 meters (H=25.294)
Closest Earth approach3.89 LD at 2108 UT on 29 Sept. 2014
Inside ten LD of Earth26 Sept. until 3 Oct. 2014
Data based onJPL SSD orbit solution #5 downloaded from JPL on 29 Sept. 2014 UTC
based on 50 observations spanning 10 days
Optical observation  
  • reported from 10 observing codes during 9.6823 days: 089, 151, 157, 474, 703, 718, F51, G96, H21, J95
  • designation assigned to Pan-STARRS 1 observation at 0755 UT 19 Sept. 2014
  • last observed at 0017 UT on 29 Sept. 2014 by Oleksandr V. Shulga via Nikolaev Obs.
Links  
2014 SS143   -   passing
Approximate diameter14 meters (H=26.857)
Closest Earth approach3.61 LD at 0740 UT on 29 Sept. 2014
Inside ten LD of Earth25 Sept. until 2 Oct. 2014
Data based onJPL SSD orbit solution #3 downloaded from JPL on 29 Sept. 2014 UTC
based on 23 observations spanning 8 days
Optical observation  
  • reported from 4 observing codes during 8.0854 days: 474, 568, F51, H21
  • designation assigned to Pan-STARRS 1 observation at 1015 UT 20 Sept. 2014
  • last observed at 1218 UT on 28 Sept. 2014 by Mt. John Obs.
Links  
2014 SO142   -   departed
Approximate diameter46 meters (H=24.337)
Closest Earth approach7.91 LD at 1331 UT on 17 Sept. 2014
Inside ten LD of Earth15 to 19 Sept. 2014
Data based onJPL SSD orbit solution #4 downloaded from JPL on 29 Sept. 2014 UTC
based on 94 observations spanning 8 days
Optical observation  
  • reported from 15 observing codes during 7.9973 days: 160, 300, 703, 850, 900, 958, C44, C77, C92, G96, H21, I93, J16, J69, J95
  • designation assigned to Catalina Sky Survey observation at 0546 UT 20 Sept. 2014
  • last observed at 0542 UT on 28 Sept. 2014 by ARO Westfield
Links  
2014 SN142   -   departed
Approximate diameter8 meters (H=28.26)
Closest Earth approach1.14 LD at 0526 UT on 23 Sept. 2014
Inside Earth SOI22 to 23 Sept. 2014
Inside ten LD of Earth19 to 26 Sept. 2014
Closest Moon approach1.32 LD at 1318 UT on 23 Sept. 2014
Data based onJPL SSD orbit solution #1 downloaded from JPL on 23 Sept. 2014 UTC
based on 51 observations spanning 2 days
Optical observation  
  • reported from 9 observing codes during 2.4363 days: 474, 900, 958, G96, H21, I93, J04, J95, K93
  • designation assigned to Mt. Lemmon Survey observation at 0510 UT 20 Sept. 2014
  • last observed at 1538 UT on 22 Sept. 2014 by Moriyama Obs.
Links  
2014 SS1   -   departed
Approximate diameter151 meters (H=21.754)
Closest Earth approach7.04 LD at 2007 UT on 10 Sept. 2014
Inside ten LD of Earth6 to 15 Sept. 2014
Data based onJPL SSD orbit solution #9 downloaded from JPL on 29 Sept. 2014 UTC
based on 160 observations spanning 19 days
Optical observation  
  • reported from 25 observing codes during 19.0231 days: 089, 118, 151, 160, 291, 300, 691, 703, 718, 850, 932, 958, C23, C77, F51, G40, H21, H36, H45, I39, I93, L04, N42, Q62, U69
  • first observed at 0921 UT on 10 Sept. 2014 by Pan-STARRS 1
  • designation assigned to Pan-STARRS 1 observation at 1009 UT 19 Sept. 2014
  • last observed at 0954 UT on 29 Sept. 2014 by the Spacewatch 0.9m telescope
Links  
2014 SG1   -   departed intruder
Approximate diameter5 meters (H=29.059)
Closest Earth approach0.21 LD at 1447 UT on 20 Sept. 2014
Inside Earth-Moon system0707-2227 UT on 20 Sept. 2014
Inside Earth SOI19 to 21 Sept. 2014
Inside ten LD of Earth17 to 23 Sept. 2014
Closest Moon approach0.80 LD at 2037 UT on 20 Sept. 2014
Inside one LD of Moon1547 on 20 Sept. until 0127 UT on 21 Sept. 2014
Data based onJPL SSD orbit solution #1 downloaded from JPL on 20 Sept. 2014 UTC
based on 29 observations
Optical observation  
  • reported from 3 observing codes during 4.884 hours: 703, 850, H21
  • designation assigned to Catalina Sky Survey observation at 0342 UT 20 Sept. 2014
  • last observed at 0835 UT on 20 Sept. 2014 by Cordell-Lorenz Obs.
Links  
2014 RW18   -   departed
Approximate diameter22 meters (H=25.89)
Closest Earth approach6.28 LD at 0130 UT on 20 Sept. 2014
Inside ten LD of Earth15 to 24 Sept. 2014
Data based onJPL SSD orbit solution #4 downloaded from JPL on 25 Sept. 2014 UTC
based on 51 observations spanning 10 days
Optical observation  
  • reported from 11 observing codes during 10.3538 days: 089, 160, 474, 703, 900, C92, D90, H21, H36, J95, W86
  • designation assigned to Catalina Sky Survey observation at 0738 UT 14 Sept. 2014
  • last observed at 1608 UT on 24 Sept. 2014 by Mt. John Obs.
Links  
2014 QV296   -   distant observation
Approximate diameter57 meters (H=23.86)
Distance from Earth45.9 - 91.6 LD min-max during the observation period
Data based onJPL SSD orbit solution #6 downloaded from JPL on 23 Sept. 2014 UTC
based on 21 observations spanning 23 days
Optical observation  
  • reported from 6 observing codes during 22.9689 days: 291, 493, 568, F51, H21, H36
  • designation assigned to Pan-STARRS 1 observation at 1134 UT 27 Aug. 2014
  • last observed at 1049 UT on 19 Sept. 2014 by David Tholen's team on Mauna Kea
Notesprevious passage Feb. 2009 at 6.4 LD +/- 23.015 hours uncertainty (unobserved)
Links  
2014 QH33   -   departed
Approximate diameter44 meters (H=24.43)
Closest Earth approach6.69 LD at 2030 UT on 12 Aug. 2014
Inside ten LD of Earth6 to 18 Aug. 2014
Data based onJPL SSD orbit solution #14 downloaded from JPL on 26 Sept. 2014 UTC
based on 108 observations spanning 2005-2014
Optical observation  
  • reported from 14 observing codes during 26.3235 days: 204, 474, 568, 703, 958, F51, G96, H21, H36, H45, I93, J75, J95, W88
  • designation assigned to La Sagra Obs. observation at 0208 UT 21 Aug. 2014
  • last observed at 0953 UT on 16 Sept. 2014 by David Tholen's team on Mauna Kea
Notesother ID: 2005 CD69
Links  
2014 OZ337   -   departed
Approximate diameter107 meters (H=22.5)
Closest Earth approach8.25 LD at 2315 UT on 25 July 2014
Inside ten LD of Earth23 to 28 July 2014
Data based onJPL SSD orbit solution #14 downloaded from JPL on 23 Sept. 2014 UTC
based on 148 observations spanning 50 days
Optical observation  
  • reported from 22 observing codes during 49.9396 days: 094, 204, 568, 595, 807, 958, C27, E23, F51, G40, H15, H21, H45, I89, I93, J95, Q62, Q63, W87, W88, Y00, Z82
  • designation assigned to Pan-STARRS 1 observation at 1207 UT 31 July 2014
  • last observed at 1040 UT on 19 Sept. 2014 by David Tholen's team on Mauna Kea
Links  
2014 MF6   -   departed
Approximate diameter245 meters (H=20.7)
Closest Earth approach9.07 LD at 1938 UT on 9 July 2014
Inside ten LD of Earth8 to 11 July 2014
Data based onJPL SSD orbit solution #13 downloaded from JPL on 26 Sept. 2014 UTC
based on 112 observations spanning 98 days
Optical observation  
  • reported from 17 observing codes during 98.0440 days: 204, 291, 474, 675, 703, 807, 844, 958, E23, F51, G40, G96, I47, I52, L04, P25, Q62
  • first observed at 0915 UT on 18 June 2014 by Pan-STARRS 1
  • designation assigned to Catalina Sky Survey observation at 0633 UT 23 June 2014
  • last observed at 1018 UT on 24 Sept. 2014 by Jana Pittichova via Mount Palomar
Links  
2013 RZ53   -   outbound
Approximate diameter2 meters (H=31.1)
Closest Earth approach1.90 LD at 0403 UT on 9 Sept. 2014 - Note: JPL reports an approach uncertainty of +/- 20 minutes
Inside Earth SOI4 to 13 Sept. 2014
Inside ten LD of Earth5 Aug. until 12 Oct. 2014
Closest Moon approach2.26 LD at 0407 UT on 5 Sept. 2014
Data based onJPL SSD orbit solution #6 downloaded from JPL on 21 July 2014 UTC (dated 13 June 2014 local)
based on 31 observations spanning 3 days
Optical observation  
    none recent
Notesrisk
previous passage Sept. 2013 at 0.63 LD
Links  
2012 UV136   -   distant observation
Approximate diameter27 meters (H=25.5)
Distance from Earth40.5 LD during the observation period
Data based onJPL SSD orbit solution #21 downloaded from JPL on 25 Sept. 2014 UTC
based on 100 observations spanning 2012-2014
Optical observation  
  • reported from one observing code during 0.132 hours: 291
  • first observed at 0736 UT on 25 Sept. 2014 by the Spacewatch 1.8m telescope
  • last observed at 0744 UT on 25 Sept. 2014 by the Spacewatch 1.8m telescope
NotesPMD candidate
previous passage Nov. 2012 at 5.79 LD and observation Aug. 2013
Links  
2011 TB4   -   approaching
Approximate diameter27 meters (H=25.5)
Closest Earth approach5.84 LD at 1535 UT on 9 Oct. 2014 - Note: JPL reports an approach uncertainty of +/- 1.821 days
Inside ten LD of Earth6 to 12 Oct. 2014
Data based onJPL SSD orbit solution #6 downloaded from JPL on 19 Sept. 2014 UTC (dated 13 June 2014 local)
based on 44 observations spanning 5 days
Optical observation  
    none recent
Notesprevious passage Oct. 2011 at 5.15 LD
Links  
2010 FV9   -   approaching
Approximate diameter28 meters (H=25.4)
Closest Earth approach8.67 LD at 2019 UT on 11 Oct. 2014
Inside ten LD of Earth8 to 14 Oct. 2014
Data based onJPL SSD orbit solution #17 downloaded from JPL on 21 Sept. 2014 UTC
based on 71 observations spanning 2010-2014
Optical observation  
  • reported from 4 observing codes during 3.1234 days: 568, F51, H21, W87
  • first observed at 0812 UT on 17 Sept. 2014 by Pan-STARRS 1
  • last observed at 1110 UT on 20 Sept. 2014 by Pan-STARRS 1
Notesprevious passage March 2010 at 7.35 LD
Links  

Footnotes

Illustration of ten lunar distances.

1. Ten lunar distances:  A "lunar distance" (LD) is the average distance between Earth and Moon (about 384,400 km., the same as 238,855 miles or nearly ten [9.59] times around Earth's equator). Ten lunar distances has no special astronomical importance but is a useful arbitrary "bubble" within which to organize this reporting. An approach by a small Solar-System body starts to become interesting at less than four LD out from Earth as it encounters our planet's "Hill sphere" (distance indicated by the blue line in this illustration at about 3.9 LD). This is a region within which Earth's gravitational influence can change the orbits of passing objects. The Moon also has a Hill sphere, outlined here as a gray circle. (Earth and Moon are not shown to scale.) The "Earth-Moon system" is generally defined as that region of space within a radius of one lunar distance from Earth, so an object can pass very close to the Moon yet not be described as coming "inside" the E-M system.

2. Data credit:  All data on this page derived from orbit solutions comes from the NASA JPL Solar System Dynamics (SSD) Group through its Horizons system. All information about optical observations comes from the IAU Minor Planet Center (MPC) and info about radar observations comes from JPL SSD. The MPC, NASA, and JPL are not associated with this page or A/CC, and responsibility for the interpretation of this information and its use here rests entirely with A/CC. Important note: Approach times presented here as to-the-minute may have unstated uncertainties of a few minutes, or many minutes or even hours for objects with old or very short observation spans, which is significant because the Earth moves through its own diameter in about seven minutes. Thus actual encounter distances may vary, occasionally by as much as ten lunar distances. See JPL's Close Approach Tables for nominal vs. minimum possible passage distances and times and for their note about uncertainties.

3. Size estimates:  Object diameters are rough approximations derived by standard formula from H, an object's "absolute magnitude" (brightness), where higher numbers represent dimmer (thus usually smaller) objects.