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25001 Pacheco (1998 OW6)
Classification: Main-belt Asteroid          SPK-ID: 2025001
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2819787018406882 3.9002e-08  
a 2.602647647919148 1.048e-08 au
q 1.868756442810186 1.0246e-07 au
i 18.96423303160065 4.6616e-06 deg
node 142.4770589300386 1.0099e-05 deg
peri 213.2744667449387 1.2106e-05 deg
M 98.87835879327939 5.3723e-06 deg
tp 2458779.269082595934
(2019-Oct-22.76908260)
2.2602e-05 TDB
period 1533.63316418406
4.20
9.2627e-06
2.536e-08
d
yr
n .2347367078433851 1.4177e-09 deg/d
Q 3.33653885302811 1.3435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1412  
   data-arc span      10603 days (29.03 yr)  
   first obs. used      1992-03-01  
   last obs. used      2021-03-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48882  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:52:27  

Additional Information
 Earth MOID = .883388 au 
 Jupiter MOID = 2.15335 au 
 T_jup = 3.283 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.56   n/a MPCxxxxx  
diameter diameter 8.348 km 0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.042   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

25001 Pacheco           Discovered 1998 July 31 by A. Lopez at Observatori Astronómic de Mallorca.
Rafael Pacheco (b. 1954) is an amateur astronomer, astrometrist and co-discoverer of minor planets. Born in Madrid, he is one of the first Spanish amateur astronomers to specialize in astrometry.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030806/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1998 OW6 = 1992 ET19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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