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15717 (1990 BL1)
Classification: Main-belt Asteroid          SPK-ID: 2015717
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .159346794089709 1.6448e-08  
a 2.618742077910381 8.9981e-09 au
q 2.201453923247539 4.179e-08 au
i 12.9234290818606 6.8813e-07 deg
node 177.1211369901438 2.1377e-06 deg
peri 258.517050165779 7.4481e-06 deg
M 136.8345357338858 6.4533e-06 deg
tp 2458612.156799218057
(2019-May-08.65679922)
2.6833e-05 TDB
period 1547.880812000653
4.24
7.9778e-06
2.184e-08
d
yr
n .2325760466884372 1.1987e-09 deg/d
Q 3.036030232573224 1.0432e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2316  
   data-arc span      13764 days (37.68 yr)  
   first obs. used      1983-07-09  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4491  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:06:50  

Additional Information
 Earth MOID = 1.25734 au 
 Jupiter MOID = 2.35836 au 
 T_jup = 3.352 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457025.5 (2015-Jan-03.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1577935167970424 1.618e-08  
q 2.206359671323416 4.0943e-08 au
tp 2457065.049479619617
(2015-Feb-11.54947962)
2.6582e-05 TDB
node 177.146086894412 2.138e-06 deg
peri 258.9733303742896 7.5472e-06 deg
i 12.91710351403412 6.8809e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2316  
   data-arc span      13764 days (37.68 yr)  
   first obs. used      1983-07-09  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4491  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:06:50  

Additional Information
 Jupiter MOID = 2.35836 au 
 T_jup = 3.352 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.617908086533188E-16 -6.517995608453165E-16 -3.707291157775308E-13 3.152963112460703E-15 -1.107416274403016E-13 -1.948151841293699E-15
q -6.517995608453165E-16 1.676329551525543E-15 9.568313215594521E-13 -8.666254991346937E-15 2.866181314918861E-13 4.948910710307286E-15
tp -3.707291157775308E-13 9.568313215594521E-13 7.066123246412694E-10 9.29544155662994E-12 1.936455971008141E-10 5.55550660139203E-12
node 3.152963112460703E-15 -8.666254991346937E-15 9.29544155662994E-12 4.571007551795824E-12 -1.412534345612402E-12 1.504827463576307E-13
peri -1.107416274403016E-13 2.866181314918861E-13 1.936455971008141E-10 -1.412534345612402E-12 5.695997136564362E-11 1.327820838779625E-12
i -1.948151841293699E-15 4.948910710307286E-15 5.55550660139203E-12 1.504827463576307E-13 1.327820838779625E-12 4.734641848766052E-13

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 13.51   n/a E2021B10  
diameter diameter 7.012 km 0.275 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.172   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

15717 (1990 BL1)          Discovered 1990-Jan-21 by Helin, E. F. at Palomar
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1990 BL1 = 1999 FW9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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