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216673 (2004 BL87)
Classification: Main-belt Asteroid          SPK-ID: 2216673
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955875331920078 4.74e-08  
a 2.627627459257829 1.3565e-08 au
q 2.113696286354007 1.2952e-07 au
i 14.45173291822054 5.1979e-06 deg
node 153.6357923497965 1.5419e-05 deg
peri 346.277443566926 2.0846e-05 deg
M 25.76745282877349 1.0772e-05 deg
tp 2459285.144133079323
(2021-Mar-11.64413308)
4.6689e-05 TDB
period 1555.765420735689
4.26
1.2047e-05
3.298e-08
d
yr
n .2313973528411266 1.7919e-09 deg/d
Q 3.14155863216165 1.6218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      7729 days (21.16 yr)  
   first obs. used      2000-02-07  
   last obs. used      2021-04-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57509  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 03:34:01  

Additional Information
 Earth MOID = 1.12938 au 
 Jupiter MOID = 1.88616 au 
 T_jup = 3.330 
[ 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 16.65   n/a MPCxxxxx  

216673 (2004 BL87)          Discovered 2004-Jan-23 by LONEOS at Anderson Mesa
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ 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
1938-Feb-12 17:25 00:02 Jupiter 1.99935728165347 1.99935621182106 1.9993583514877 3.52669032702305 3.40444560327119 2428942.225653126 1.64317903425146 141.097031487065 38.6426732616465 -73.3394743211894 2834718.88740156 T 22 CATAB v2.0g-lin.ifort 2021-Jul-09 03:34:02 2021-Jul-09 03:34
1997-Dec-04 13:31 < 00:01 Jupiter 1.89765078264061 1.89765036977589 1.89765119550532 3.74065117132258 3.61935971866074 2450787.063229023 0.40596610643676 76.246861176066 18.8754873459588 87.3216502150281 2759363.63431906 T 22 CATAB v2.0g-lin.ifort 2021-Jul-09 03:34:02 2021-Jul-09 03:34
2057-Sep-22 07:47 < 00:01 Jupiter 1.90014031469047 1.90013976885064 1.90014086053246 3.83125982415843 3.71308699558246 2472628.824570712 0.89162015749781 136.580262113017 15.5672310444246 81.5796835115917 2811283.96985747 T 22 CATAB v2.0g-lin.ifort 2021-Jul-09 03:34:02 2021-Jul-09 03:34
2163-Dec-14 22:28 00:03 Jupiter 1.90396049647597 1.90395973454251 1.9039612584327 3.75257149309715 3.63208546459585 2511427.436303834 3.05051329710918 398.38293971922 19.8004899920843 -84.9138280764427 2772520.45656587 T 22 CATAB v2.0g-lin.ifort 2021-Jul-09 03:34:02 2021-Jul-09 03:34
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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