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(2021 BB1)
Classification: Apollo [NEO]          SPK-ID: 54106337
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459232.5 (2021-Jan-18.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7469194556630681 0.00070481  
a 1.163070276437693 0.0015158 au
q .2943504586629572 0.00043614 au
i 4.914294048577851 0.0087778 deg
node 302.1739187395598 0.0029864 deg
peri 306.437002652321 0.012797 deg
M 322.106840055735 0.10625 deg
tp 2459280.724272485565
(2021-Mar-07.22427249)
0.040946 TDB
period 458.1496534028404
1.25
0.89566
0.002452
d
yr
n .7857694474417953 0.0015361 deg/d
Q 2.031790094212429 0.002648 au
  Orbit Determination Parameters
   # obs. used (total)      65  
   data-arc span      3 days  
   first obs. used      2021-01-16  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .51848  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:24:06  

Additional Information
 Earth MOID = .00485861 au 
 Jupiter MOID = 3.02861 au 
 T_jup = 5.100 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 4.967603357952707E-7 -3.073876257537784E-7 -2.885927757058719E-5 -2.102867152355712E-6 9.014644043815304E-6 6.186011668277996E-6
q -3.073876257537784E-7 1.90213941278757E-7 1.785759701939272E-5 1.301027762293605E-6 -5.579203421335831E-6 -3.827631543504079E-6
tp -2.885927757058719E-5 1.785759701939272E-5 .001676579806391815 .0001221682394395245 -.0005236938739190003 -.0003593781262855479
node -2.102867152355712E-6 1.301027762293605E-6 .0001221682394395245 8.918294813536586E-6 -3.814265370303771E-5 -2.620276285219265E-5
peri 9.014644043815304E-6 -5.579203421335831E-6 -.0005236938739190003 -3.814265370303771E-5 .0001637604070115685 .0001122418290583304
i 6.186011668277996E-6 -3.827631543504079E-6 -.0003593781262855479 -2.620276285219265E-5 .0001122418290583304 7.704922484010302E-5

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.83   .46448 E2021-BA4 autocmod 2.8

[ 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
1943-Apr-30 03:12 8_05:24 Venus 0.0565827232623577 0.0500334794756508 0.262273840272648 28.1225321388692 28.1211674262235 2430844.633012746 11844.1546330246 11520900.3001885 95.369800593346 -62.1641061040161 84900.9659736019 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 23:24:06 2021-Apr-15 23:24
1944-Oct-13 14:27 6_05:19 Earth 0.0998973256872594 0.0818755023480609 0.326976923166064 27.3175735737241 27.3165971818987 2431377.102037276 8958.90175116042 12931883.0987407 278.379796376205 -55.0509770566297 43218.645494752 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 23:24:06 2021-Apr-15 23:24
2013-Oct-13 02:09 9_15:40 Earth 0.0867124083698005 0.0831660636353678 0.289273599910328 26.3480975459704 26.3469312965059 2456578.589751936 13900.3473493372 12592946.0624585 283.402505726325 -73.5711590071311 43404.5293227389 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 23:24:06 2021-Apr-15 23:24
2016-Jan-16 21:50 6_20:19 Earth 0.0761842871258372 0.00423602468147975 0.250180949754418 27.8955849998851 27.8943312201814 2457404.409880650 9859.38903045706 8680586.24192732 16.0243254864194 -3.19052204410613 38248.694254341 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 23:24:06 2021-Apr-15 23:24
2018-Oct-02 11:48 4_21:57 Venus 0.134854760930627 0.0950665472185885 0.229325802010911 24.7509744906502 24.7503238876412 2458393.992006057 7077.37376420423 5637298.6613041 215.021172884741 44.8271560691432 64543.8756581027 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 23:24:06 2021-Apr-15 23:24
2018-Oct-17 06:29 3_16:59 Earth 0.147100369391291 0.0889573015400562 0.227554234462523 29.3304317523286 29.3298141844349 2458408.770364006 5338.65684404132 4517949.95607527 271.774810766414 -34.6273913242162 45115.3768231606 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 23:24:06 2021-Apr-15 23:24
2020-Jan-01 23:17 2_05:56 Venus 0.119701956237722 0.0964850944738244 0.161462174815893 32.9130320745269 32.9124808818471 2458850.469993035 3235.52844717039 2891012.73102233 181.660591259592 -52.858795347199 77350.2363067358 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 23:24:06 2021-Apr-15 23:24
2021-Jan-19 17:05 < 00:01 Earth 0.0183766379341148 0.0183041115334734 0.0184491640692148 25.0359810335658 25.030188988612 2459234.211505416 0.0245467601342056 3614.91341355644 5.94406678132274 0.0427425484386158 650.698212614708 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 23:24:06 2021-Apr-15 23:24
2022-Jun-19 05:54 2_05:28 Mercury 0.0859508068020137 0.0604039176465596 0.140070958912889 46.0868824107695 46.0868452316751 2459749.745925129 3208.38045963126 3252803.02415948 45.5999120155339 -44.6502570011609 195118.721798657 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 23:24:06 2021-Apr-15 23:24
2023-Oct-22 03:35 3_13:44 Earth 0.245355528615208 0.172562507220391 0.32123730219569 32.8186336261735 32.8183027250801 2460239.649129765 5143.68736131063 3953676.41493202 267.926600614133 -19.3554042669504 43856.7053555984 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 23:24:06 2021-Apr-15 23:24
2026-Jan-24 02:31 4_11:24 Earth 0.149903185199453 0.000412521620807396 0.326565601798552 21.2175576196996 21.2167198692309 2461064.604695852 6443.81464441278 8809516.73954218 32.9814182944266 0.159197342692855 1743.48326002316 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 23:24:06 2021-Apr-15 23:24
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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