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JPL Small-Body Database Browser
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160549 (1998 QP20)
Classification: Main-belt Asteroid          SPK-ID: 2160549
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2977164199516422 3.6047e-08  
a 2.736403745114056 1.4207e-08 au
q 1.921731418576433 9.6982e-08 au
i 4.246487869251453 5.113e-06 deg
node 305.8765453383782 6.1666e-05 deg
peri 118.7141710591085 6.2791e-05 deg
M 145.3238120103414 1.0949e-05 deg
tp 2457933.074229242612
(2017-Jun-28.57422924)
4.6874e-05 TDB
period 1653.364814401935
4.53
1.2876e-05
3.525e-08
d
yr
n .2177377895453892 1.6957e-09 deg/d
Q 3.551076071651679 1.8437e-08 au
  Orbit Determination Parameters
   # obs. used (total)      769  
   data-arc span      7204 days (19.72 yr)  
   first obs. used      1998-08-17  
   last obs. used      2018-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54033  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:35:08  

Additional Information
 Earth MOID = .939336 au 
 Jupiter MOID = 1.81048 au 
 T_jup = 3.282 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO439950  

160549 (1998 QP20)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1925-Apr-07 15:22 00:02 Jupiter 1.9311694796269 1.93116808665145 1.93117087260401 1.78061022881001 1.51438462488635 2424248.140442652 2.18226329799587 222.304424903179 37.3481085617714 65.7683289550114 1616276.75369181 T 17 CATAB v2.0e-lin.ifort 2019-Jul-13 08:35:12 2019-Jul-13 08:35
1983-Oct-09 17:22 < 00:01 Jupiter 1.81437906201981 1.81437866432129 1.81437945976762 1.13593483478596 0.597218871118129 2445617.223895956 0.798368627434267 1605.83856164407 246.473737988237 41.9136481944491 3962527.95869734 T 17 CATAB v2.0e-lin.ifort 2019-Jul-13 08:35:12 2019-Jul-13 08:35
2042-Apr-13 23:45 < 00:01 Jupiter 1.91881416033914 1.9188135412732 1.91881477940556 0.912722643280562 n/a 2466988.489280644 0.665981581892992 68.0317811056009 18.4605533860623 -67.798444502257 14480724.0770134 F 17 CATAB v2.0e-lin.ifort 2019-Jul-13 08:35:12 2019-Jul-13 08:35
2079-Jan-27 08:12 00:01 Jupiter 1.82523185587473 1.82523142602447 1.82523228573371 1.39394105217353 1.00744514347797 2480425.841481202 1.46759064848797 511.921007098121 76.8737064393499 60.0509647407393 3837125.83207653 T 17 CATAB v2.0e-lin.ifort 2019-Jul-13 08:35:12 2019-Jul-13 08:35
2137-Aug-05 12:10 00:03 Jupiter 1.84231420212732 1.84231315104692 1.84231525322123 1.01796215462787 0.341653037720313 2501800.006795574 2.81315127675154 6175.25284827393 954.620042193284 13.6155978901722 2300768.16802096 T 17 CATAB v2.0e-lin.ifort 2019-Jul-13 08:35:12 2019-Jul-13 08:35
2174-May-19 08:21 00:04 Jupiter 1.88573120650729 1.88572979394925 1.88573261907251 1.70733094505595 1.42008091432441 2515235.847592911 3.72669565564735 329.364793080978 40.2358280420725 67.201729033336 1910605.94560645 T 17 CATAB v2.0e-lin.ifort 2019-Jul-13 08:35:12 2019-Jul-13 08:35

Alternate Designations
 1998 QP20 = 2000 DN53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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