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21898 (1999 VJ7)
Classification: Main-belt Asteroid          SPK-ID: 2021898
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1428611773820062 3.3838e-08  
a 3.131263162935674 1.8555e-08 au
q 2.683927220785779 1.0921e-07 au
i 9.220887280677246 3.8704e-06 deg
node 48.29721353161971 2.3844e-05 deg
peri 13.02244881385873 2.9295e-05 deg
M 316.0864823231806 2.0348e-05 deg
tp 2459643.372950137545
(2022-Mar-04.87295014)
0.00011574 TDB
period 2023.847479119854
5.54
1.7989e-05
4.925e-08
d
yr
n .1778790169289632 1.5811e-09 deg/d
Q 3.578599105085569 2.1206e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1627  
   data-arc span      11968 days (32.77 yr)  
   first obs. used      1988-11-02  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49716  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:46:13  

Additional Information
 Earth MOID = 1.69707 au 
 Jupiter MOID = 1.79144 au 
 T_jup = 3.177 
[ 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 13.21   n/a MPO636392  
diameter diameter 12.909 km 0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.031   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

21898 (1999 VJ7)          Discovered 1999-Nov-07 by Korlevic, K. at Visnjan
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ 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
1937-Apr-26 07:37 00:02 Jupiter 1.86848607794523 1.86848529200369 1.86848686388836 2.40072536374093 2.20382436721236 2428649.817294938 2.17076689423731 107.77685463139 7.21334472062686 76.1035576347817 3037595.46654346 T 30 CATAB v2.0g-lin.ifort 2021-Aug-24 22:46:18 2021-Aug-24 22:46
1947-Jul-22 07:14 00:02 Jupiter 1.8012147801028 1.80121433316683 1.80121522703878 2.74657520341741 2.56966417029506 2432388.801069783 1.69928667700583 95.2592699017278 13.0135568526582 84.0840202079943 2720213.6961534 T 30 CATAB v2.0g-lin.ifort 2021-Aug-24 22:46:18 2021-Aug-24 22:46
2020-Jan-22 21:11 < 00:01 Jupiter 1.81953834020057 1.81953792245747 1.81953875794388 2.28585675573395 2.07222367882256 2458871.382550302 0.220933205754378 52.0804299088342 5.63603891246593 69.4292704149267 3094800.76693439 T 30 CATAB v2.0g-lin.ifort 2021-Aug-24 22:46:18 2021-Aug-24 22:46
2030-Apr-26 18:17 < 00:01 Jupiter 1.83451456543011 1.83451421030007 1.83451492056056 2.85121944512401 2.68440360976327 2462618.261782508 0.419388137347688 98.8051655565906 9.13488286909703 83.165271956724 3287681.05160533 T 30 CATAB v2.0g-lin.ifort 2021-Aug-24 22:46:18 2021-Aug-24 22:46
2092-Aug-24 05:04 00:02 Jupiter 1.98071775794231 1.98071722309005 1.98071829279491 3.1896997768516 3.05269002857316 2485383.710800783 2.06090577899632 76.1105015392533 16.0165281589658 86.0159877459687 2529542.08548508 T 30 CATAB v2.0g-lin.ifort 2021-Aug-24 22:46:18 2021-Aug-24 22:46
2102-Oct-22 09:16 00:02 Jupiter 1.79533666064385 1.79533624522268 1.79533707606635 2.2882423251613 2.07182823589797 2489093.886165329 2.31783382529601 135.204504734748 10.038100585154 78.072939285416 2992858.81690042 T 30 CATAB v2.0g-lin.ifort 2021-Aug-24 22:46:18 2021-Aug-24 22:46
2113-Jan-31 02:55 00:02 Jupiter 1.88836053317109 1.8883597505229 1.88836131582015 2.9964757209375 2.84284513245792 2492847.621497131 2.43845981695532 113.114388861902 22.0335800424476 77.9803816152015 2446905.39647794 T 30 CATAB v2.0g-lin.ifort 2021-Aug-24 22:46:18 2021-Aug-24 22:46
2175-May-26 18:42 00:04 Jupiter 1.92797637046299 1.92797543649232 1.92797730443552 2.74359655570184 2.57849902741271 2515608.279324756 4.35834381533853 129.168909797025 15.2763558143919 -89.9132299664388 2082926.70146099 T 30 CATAB v2.0g-lin.ifort 2021-Aug-24 22:46:18 2021-Aug-24 22:46
2185-Jul-22 20:40 00:04 Jupiter 1.78221439265998 1.78221402928209 1.78221475603817 2.3509351819419 2.13924473562506 2519318.361215677 4.44931055750449 223.434038468155 9.86162724137336 80.3873217050608 2792098.14773946 T 30 CATAB v2.0g-lin.ifort 2021-Aug-24 22:46:18 2021-Aug-24 22:46
2195-Nov-07 21:30 00:04 Jupiter 1.95507149758184 1.95506982586364 1.95507316930849 3.17605485565046 3.03658310309623 2523078.395932099 4.47238693759143 237.050800459978 22.0999429116932 73.5008816935905 2523896.39025856 T 30 CATAB v2.0g-lin.ifort 2021-Aug-24 22:46:18 2021-Aug-24 22:46

Alternate Designations
 1999 VJ7 = 1988 VY5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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