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20236 (1998 BZ7)
Classification: Apollo [NEO]          SPK-ID: 2020236
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5586814035294958 6.2621e-08  
a 2.036151984931348 1.7644e-08 au
q .8985917361905337 1.2546e-07 au
i 6.501340479450019 7.2796e-06 deg
node 111.5041454654391 5.4892e-05 deg
peri 104.2233903883087 5.9886e-05 deg
M 287.6728843746234 4.0981e-05 deg
tp 2459413.712351548609
(2021-Jul-18.21235155)
0.00012357 TDB
period 1061.2402540019
2.91
1.3794e-05
3.777e-08
d
yr
n .339225730123271 4.4093e-09 deg/d
Q 3.173712233672162 2.7502e-08 au
  Orbit Determination Parameters
   # obs. used (total)      336  
   data-arc span      8409 days (23.02 yr)  
   first obs. used      1998-01-24  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51351  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:15:47  

Additional Information
 Earth MOID = .0519852 au 
 Jupiter MOID = 1.83178 au 
 T_jup = 3.586 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456165.5 (2012-Aug-26.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5589144142496775 6.2683e-08  
q .8979882732537531 1.2557e-07 au
tp 2456230.749465302029
(2012-Oct-30.24946530)
8.2028e-05 TDB
node 111.5380866926602 5.4921e-05 deg
peri 104.2112500443325 5.9908e-05 deg
i 6.500784221324133 7.2792e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      336  
   data-arc span      8409 days (23.02 yr)  
   first obs. used      1998-01-24  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51351  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:15:47  

Additional Information
 Jupiter MOID = 1.83178 au 
 T_jup = 3.586 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.929148722895524E-15 -7.856916671427375E-15 1.346402633649893E-12 4.176184476989336E-13 7.642725124781776E-14 -5.157978889341028E-14
q -7.856916671427375E-15 1.57669591765057E-14 -2.104800735414448E-12 -9.141869587350188E-13 2.518356222002608E-14 1.138740647010086E-13
tp 1.346402633649893E-12 -2.104800735414448E-12 6.728617082396263E-9 -8.054333033137471E-10 2.086527544975863E-9 8.731620588710057E-11
node 4.176184476989336E-13 -9.141869587350188E-13 -8.054333033137471E-10 3.016315088035078E-9 -3.148258907382709E-9 1.926460219235575E-10
peri 7.642725124781776E-14 2.518356222002608E-14 2.086527544975863E-9 -3.148258907382709E-9 3.589009325962627E-9 -1.739938999059279E-10
i -5.157978889341028E-14 1.138740647010086E-13 8.731620588710057E-11 1.926460219235575E-10 -1.739938999059279E-10 5.298648393559361E-11

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 17.66   n/a MPCxxxxx  
rotation period rot_per 10.182 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (1998) http://www.asu.cas.cz/~ppravec/neo.htm]

20236 (1998 BZ7)          Discovered 1998-Jan-24 by JPL/GEODSS NEAT at Haleakala
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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