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469088 (2015 BM346)
Classification: Main-belt Asteroid          SPK-ID: 2469088
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08587081549073668 4.9129e-08  
a 2.718925873813489 2.2406e-08 au
q 2.485449491770261 1.3302e-07 au
i 6.166883579761556 5.0344e-06 deg
node 91.18901541617129 5.9855e-05 deg
peri 200.8469526404378 7.145e-05 deg
M 4.237102807573277 3.7351e-05 deg
tp 2459377.226482649211
(2021-Jun-11.72648265)
0.00016991 TDB
period 1637.549656308209
4.48
2.0242e-05
5.542e-08
d
yr
n .2198406616942571 2.7174e-09 deg/d
Q 2.952402255856716 2.433e-08 au
  Orbit Determination Parameters
   # obs. used (total)      169  
   data-arc span      8474 days (23.20 yr)  
   first obs. used      1998-04-22  
   last obs. used      2021-07-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54242  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 16:53:02  

Additional Information
 Earth MOID = 1.46996 au 
 Jupiter MOID = 2.17749 au 
 T_jup = 3.346 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457773.5 (2017-Jan-20.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08446801308687635 4.9133e-08  
q 2.488386081760922 1.3257e-07 au
tp 2457739.008384443621
(2016-Dec-16.50838444)
0.00017518 TDB
node 91.20127887775354 5.9842e-05 deg
peri 200.5594706690547 7.1809e-05 deg
i 6.167747469083567 5.0349e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      169  
   data-arc span      8474 days (23.20 yr)  
   first obs. used      1998-04-22  
   last obs. used      2021-07-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54242  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 16:53:02  

Additional Information
 Jupiter MOID = 2.17749 au 
 T_jup = 3.346 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.414014138322472E-15 -6.434589721975342E-15 2.461837844619266E-12 -2.425549275619521E-14 6.123344413984914E-13 1.3991352553169E-17
q -6.434589721975342E-15 1.757518384526521E-14 -7.293994066861495E-12 6.598819614474169E-14 -1.799096998851749E-12 7.684133325136865E-16
tp 2.461837844619266E-12 -7.293994066861495E-12 3.068679173950653E-8 1.627542190598715E-11 7.007767622300049E-9 -1.860597642932798E-12
node -2.425549275619521E-14 6.598819614474169E-14 1.627542190598715E-11 3.581051813677958E-9 -3.556695114710461E-9 2.77264796721937E-11
peri 6.123344413984914E-13 -1.799096998851749E-12 7.007767622300049E-9 -3.556695114710461E-9 5.156561273227618E-9 -2.798637211469553E-11
i 1.3991352553169E-17 7.684133325136865E-16 -1.860597642932798E-12 2.77264796721937E-11 -2.798637211469553E-11 2.535031447663091E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.63   n/a E2021B25  
rotation period rot_per 5.40 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

469088 (2015 BM346)          Discovered 1998-Apr-22 by Spacewatch at Kitt Peak
Reference: Last Updated: 2016-06-21

Alternate Designations
 2015 BM346 = 1998 HY30 = 2012 MM8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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