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1501 Baade (1938 UJ)
Classification: Main-belt Asteroid          SPK-ID: 2001501
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2399407305186621 1.4559e-08  
a 2.545644923498317 4.891e-09 au
q 1.934841020913007 3.7507e-08 au
i 7.298691122620677 2.3614e-07 deg
node 16.88297784555182 5.2655e-06 deg
peri 14.17387239569413 6.0687e-06 deg
M 75.84499973512429 2.5967e-06 deg
tp 2458887.949916019175
(2020-Feb-08.44991602)
1.0328e-05 TDB
period 1483.526015242229
4.06
4.2755e-06
1.171e-08
d
yr
n .2426651075217036 6.9935e-10 deg/d
Q 3.156448826083627 6.0645e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3216  
   data-arc span      32974 days (90.28 yr)  
   first obs. used      1930-11-24  
   last obs. used      2021-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40464  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 12:43:53  

Additional Information
 Earth MOID = .939936 au 
 Jupiter MOID = 2.30236 au 
 T_jup = 3.391 
[ 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 11.99   n/a E2021B10  
diameter diameter 10.798 km 0.388 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 15.132 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:
[Ivarsen, K.; Willis, S.; Ingleby, L.; Matthews, D.; Simet, M. (2004) Minor Planet Bull. 31, 29-33.]
[Collaborative Asteroid Lightcurve Link (CALL) (2011) http://www.minorplanetobserver.com/DATA/submissions_results.htm]
geometric albedo albedo 0.263   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1501 Baade (1938 UJ)          Discovered 1938-Oct-20 by Wachmann, A. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2163-Jul-04 17:01 < 00:01 Europ 0.0417243187963474 0.0417180493384832 0.0417305889494389 4.83214638198462 4.83214632926863 2511264.208788104 0.73927144421865 412.918027594797 31.9135711099384 40.9606535436056 128659.558547971 T 42 CATAB v2.0f-lin.ifort 2021-Mar-16 12:45:01 2021-Mar-16 12:45

Alternate Designations
 1938 UJ = 1930 UH1 = 1930 WJ = 1930 XH = 1934 VG = 1950 RD = 1970 QA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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