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24878 (1996 HP25)
Classification: Main-belt Asteroid          SPK-ID: 2024878
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .187681673902686 4.6304e-08  
a 3.125741535837086 2.4497e-08 au
q 2.539097132204029 1.52e-07 au
i 19.02629716065964 5.3218e-06 deg
node 55.03536769907523 1.604e-05 deg
peri 356.5185759830546 2.1414e-05 deg
M 340.6501182744445 1.3231e-05 deg
tp 2459308.993529193643
(2021-Apr-04.49352919)
7.4093e-05 TDB
period 2018.49660187472
5.53
2.3729e-05
6.497e-08
d
yr
n .1783505603455773 2.0967e-09 deg/d
Q 3.712385939470143 2.9095e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1353  
   data-arc span      9063 days (24.81 yr)  
   first obs. used      1996-04-20  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50409  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:50:52  

Additional Information
 Earth MOID = 1.54973 au 
 Jupiter MOID = 1.68038 au 
 T_jup = 3.104 
[ show covariance matrix ]

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 13.54   n/a MPCxxxxx  
diameter diameter 9.666 km 2.454 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 114.443 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 0.047   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

24878 (1996 HP25)          Discovered 1996-Apr-20 by Elst, E. W. at La Silla
Reference: 20010606/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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