Minor Planet Radar Database
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163899 (2003 SD220)
Classification: ATE [NEO, PHA]
H:17.9 mag, G:0.15

  MPC page for this object   |  JPL SBDB page for this object   |  NEODyS-2 page for this object   |  ESA SSA page for this object  

History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2015 Nov Goldstone Goldstone 8560 [G]
2015 Nov Arecibo Arecibo 2380 [A]
2015 Nov Arecibo Green Bank Telescope 2380 [A-GBT]
2018 Aug Arecibo Arecibo 2380 [A]
2018 Nov Goldstone Goldstone 8560 [G]
2018 Nov Goldstone Green Bank Telescope 8560 [G-GBT]
2018 Nov Goldstone Goldstone DSS-13 8560 [G-DSS13]
2018 Nov Goldstone DSS-13 Green Bank Telescope 7190 [DSS13-GBT]
2018 Nov Goldstone Sardinia Deep Space Antenna 8560 [G-SDSA]
2018 Nov Goldstone Medicina 8560 [G-ME]
2018 Nov Goldstone Badary 8560 [G-Bd]
2018 Nov Goldstone Zelenchukskaya 8560 [G-Zc]
2018 Nov Goldstone Svetloe 8560 [G-Sv]
2018 Nov Arecibo Arecibo 2380 [A]
2018 Nov Arecibo Green Bank Telescope 2380 [A-GBT]
2018 Nov Canberra DSS-43 Australian Telescope Compact Array 7190 [DSS43-ATCA]
2018 Nov Canberra DSS-35 Australian Telescope Compact Array 7190 [DSS35-ATCA]
2018 Nov Canberra DSS-36 Australian Telescope Compact Array 7190 [DSS36-ATCA]

Radar-Based Physical Properties
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Orbital Elements at Epoch 2019-04-27 00:00 TT from MPO469736 (heliocentric ecliptic J2000)
Element Value Units
e 0.2106895
a 0.8266954 AU
i 8.51488 deg
om 273.91684 deg
w 326.93039 deg
ma 28.01252 deg
n 1.31125099 deg/d

Link to complete orbital information at Minor Planet Center

Earth Close-Approach Data (+/- 10 years)
date nominal distance RTT SNR/run at Arecibo
2009-12-21 04:56:00 0.24160 241.1 15.9
2012-08-09 04:14:00 0.27818 277.6 9.7
2012-12-23 04:02:00 0.15361 153.3 77.1
2015-08-27 17:45:00 0.24907 248.6 14.3
2015-12-24 13:08:00 0.07297 72.8 1024.0
2018-12-22 01:04:00 0.01890 18.9 102822.4
2021-12-17 17:26:00 0.03628 36.2 11363.7
2024-12-02 12:36:00 0.08834 88.2 527.8
2027-11-12 18:16:00 0.13819 137.9 111.4

Link to complete Close-Approach Data on SBDB at JPL