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24507 (2001 BH18)
Classification: Main-belt Asteroid          SPK-ID: 2024507
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1588155477628464 3.2196e-08  
a 2.66279117642554 1.0802e-08 au
q 2.239898537163444 8.4107e-08 au
i 12.06806211651105 3.3352e-06 deg
node 282.8369177818437 2.2589e-05 deg
peri 332.0457629457815 2.7127e-05 deg
M 153.9024203694401 1.6057e-05 deg
tp 2458718.004393562159
(2019-Aug-22.50439356)
6.9887e-05 TDB
period 1587.099265439001
4.35
9.6576e-06
2.644e-08
d
yr
n .2268289122422484 1.3803e-09 deg/d
Q 3.085683815687636 1.2518e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1944  
   data-arc span      11711 days (32.06 yr)  
   first obs. used      1989-07-10  
   last obs. used      2021-08-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40459  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 23:28:26  

Additional Information
 Earth MOID = 1.23187 au 
 Jupiter MOID = 2.03658 au 
 T_jup = 3.335 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457531.5 (2016-May-23.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1582134517480827 3.2186e-08  
q 2.242716042739598 8.4066e-08 au
tp 2457131.262847827301
(2015-Apr-18.76284783)
6.9215e-05 TDB
node 282.8599164900631 2.2602e-05 deg
peri 332.3587803074458 2.7175e-05 deg
i 12.06185060763763 3.3333e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1944  
   data-arc span      11711 days (32.06 yr)  
   first obs. used      1989-07-10  
   last obs. used      2021-08-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40459  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 23:28:26  

Additional Information
 Jupiter MOID = 2.03658 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.03596552564666E-15 -2.690584248699025E-15 -3.583271372624184E-13 -4.34891565535898E-15 -1.109412488217764E-13 1.198009784691748E-15
q -2.690584248699025E-15 7.067158317306956E-15 9.753192234144643E-13 1.103868664454215E-14 3.019170334186963E-13 -3.27150355326103E-15
tp -3.583271372624184E-13 9.753192234144643E-13 4.790781340531386E-9 1.178284980065595E-11 1.07450329861781E-9 -7.101017271738615E-12
node -4.34891565535898E-15 1.103868664454215E-14 1.178284980065595E-11 5.108656788922138E-10 -4.970045621059377E-10 9.948150535135584E-12
peri -1.109412488217764E-13 3.019170334186963E-13 1.07450329861781E-9 -4.970045621059377E-10 7.384764882415862E-10 -1.139850111915849E-11
i 1.198009784691748E-15 -3.27150355326103E-15 -7.101017271738615E-12 9.948150535135584E-12 -1.139850111915849E-11 1.111081924746585E-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 14.21   n/a E2021B10  
diameter diameter 4.440 km 0.278 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 19.0559 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.247   0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24507 (2001 BH18)          Discovered 2001-Jan-19 by LINEAR at Socorro
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 BH18 = 1989 NW1 = 1998 PD = 1999 XX181 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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