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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2950358328392683 3.5975e-08  
a 2.741747570131546 1.4596e-08 au
q 1.932833792342745 9.6905e-08 au
i 4.252931374795865 4.7141e-06 deg
node 305.7473556337189 6.0674e-05 deg
peri 118.9063270217777 6.1573e-05 deg
M 232.1233347871343 1.0838e-05 deg
tp 2459589.517813357584
(2022-Jan-10.01781336)
5.3571e-05 TDB
period 1658.210373689009
4.54
1.3242e-05
3.625e-08
d
yr
n .217101524458028 1.7337e-09 deg/d
Q 3.550661347920346 1.8903e-08 au
  Orbit Determination Parameters
   # obs. used (total)      801  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53741  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 13:21:43  

Additional Information
 Earth MOID = .9507 au 
 Jupiter MOID = 1.81082 au 
 T_jup = 3.281 
[ 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 1.93116909823388 1.93116775223626 1.93117044423303 1.78060882441126 1.51438291639766 2424248.140093133 2.16724931911872 218.328855163852 35.0205206129622 66.0720256891304 1653325.89794694 T 18 CATAB v2.0f-lin.ifort 2020-Feb-24 13:21:58 2020-Feb-24 13:22
1983-Oct-09 17:22 < 00:01 Jupiter 1.81437889782244 1.81437851764822 1.814379278041 1.1359345993735 0.597218352612711 2445617.223789110 0.781058496221465 1565.594316224 238.259296131097 42.0283602812982 4148001.76382348 T 18 CATAB v2.0f-lin.ifort 2020-Feb-24 13:21:58 2020-Feb-24 13:22
2042-Apr-13 23:45 < 00:01 Jupiter 1.91881400039371 1.91881341100332 1.91881458978453 0.912722230248711 n/a 2466988.489403880 0.657277194519582 64.0229987118603 17.8868024473198 -67.7056665498801 14941644.4703112 F 18 CATAB v2.0f-lin.ifort 2020-Feb-24 13:21:58 2020-Feb-24 13:22
2079-Jan-27 08:12 00:01 Jupiter 1.82523176766088 1.8252313799781 1.82523215535102 1.39394140710382 1.00744561231102 2480425.841733191 1.46628046072109 495.784506688912 70.8741595912393 60.3308008887899 4120338.91535469 T 18 CATAB v2.0f-lin.ifort 2020-Feb-24 13:21:58 2020-Feb-24 13:22
2137-Aug-05 12:10 00:03 Jupiter 1.84231386120757 1.84231281481709 1.84231490761114 1.01796248819436 0.341653782567621 2501800.007291398 2.81239778706597 6114.36177617103 954.388269634639 13.6284619224619 2317409.93895288 T 18 CATAB v2.0f-lin.ifort 2020-Feb-24 13:21:58 2020-Feb-24 13:22
2174-May-19 08:21 00:04 Jupiter 1.88573143382492 1.88573003707701 1.88573283058001 1.70733217624297 1.42008243268124 2515235.848216340 3.72480667843929 325.767020789315 38.1303000224624 67.5154855183808 1935489.82098685 T 18 CATAB v2.0f-lin.ifort 2020-Feb-24 13:21:58 2020-Feb-24 13:22

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