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101818 (1999 JD13)
Classification: Mars-crossing Asteroid          SPK-ID: 2101818
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2671139613265877 4.3339e-08  
a 2.191785643281681 8.6434e-09 au
q 1.606329097725968 9.7816e-08 au
i 5.673813329543702 6.4177e-06 deg
node 219.9648866126803 4.0831e-05 deg
peri 54.37738982061187 4.2934e-05 deg
M 187.5448492503492 1.6796e-05 deg
tp 2459568.265779333203
(2021-Dec-19.76577933)
5.7645e-05 TDB
period 1185.210645616897
3.24
7.0109e-06
1.919e-08
d
yr
n .3037434749099992 1.7967e-09 deg/d
Q 2.777242188837394 1.0952e-08 au
  Orbit Determination Parameters
   # obs. used (total)      455  
   data-arc span      7563 days (20.71 yr)  
   first obs. used      1999-05-14  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55733  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:27:03  

Additional Information
 Earth MOID = .598707 au 
 Jupiter MOID = 2.35815 au 
 T_jup = 3.619 
[ 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 16.6   n/a MPO436476  

101818 (1999 JD13)          Discovered 1999-May-14 by Tholen, D. J., Whiteley, R. at Mauna Kea
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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-Dec-28 09:14 00:08 Psych 0.048540266530684 0.0485383948444073 0.0485421388739494 3.64675536607363 3.64675529772271 2424512.884658229 8.1690295357863 309.336305359427 28.0354276939369 73.2178389151214 247802.655107543 T 17 CATAB v2.0f-lin.ifort 2020-Feb-24 01:27:14 2020-Feb-24 01:27
2063-Mar-21 01:03 < 00:01 Juno 0.0133677170676104 0.0133595473205706 0.0133758872993514 9.94230686386685 9.94230677232881 2474634.544041809 0.327746278200976 427.05198016744 58.4467114858672 17.6469278725633 11287.9938943176 T 17 CATAB v2.0f-lin.ifort 2020-Feb-24 01:27:14 2020-Feb-24 01:27
2075-Jun-10 09:25 00:03 Europ 0.0288156734118672 0.0288123317813086 0.0288190158485176 4.49265410429512 4.49265402219572 2479098.892062035 2.90802903138871 296.406436893957 33.3479648776574 56.3501980671186 107846.990865182 T 17 CATAB v2.0f-lin.ifort 2020-Feb-24 01:27:14 2020-Feb-24 01:27
2110-Sep-14 18:53 00:06 Psych 0.0465307983337096 0.0465260748440495 0.0465355232237835 3.87874788242617 3.87874781538817 2491978.286987140 6.12857069329591 474.732910628424 51.7347684903529 -60.8803324452816 117645.692266639 T 17 CATAB v2.0f-lin.ifort 2020-Feb-24 01:27:14 2020-Feb-24 01:27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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