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574 Reginhild (A905 SH)
Classification: Main-belt Asteroid          SPK-ID: 2000574
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .238423744163673 2.8289e-08  
a 2.252975115672694 4.2789e-09 au
q 1.715812353086426 6.3882e-08 au
i 5.684789759694073 4.0634e-06 deg
node 336.6525413301064 3.1769e-05 deg
peri 77.07171295171243 3.3126e-05 deg
M 297.5826577340084 7.9951e-06 deg
tp 2459214.658734038089
(2020-Dec-31.15873404)
2.7453e-05 TDB
period 1235.187873350365
3.38
3.5188e-06
9.634e-09
d
yr
n .2914536385655438 8.303e-10 deg/d
Q 2.790137878258962 5.2991e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2284  
   data-arc span      42062 days (115.16 yr)  
   first obs. used      1905-09-19  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37431  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:54:34  

Additional Information
 Earth MOID = .737691 au 
 Jupiter MOID = 2.6113 au 
 T_jup = 3.581 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456631.5 (2013-Dec-05.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2393453478052111 2.8441e-08  
q 1.713362214414722 6.4319e-08 au
tp 2456744.156774077754
(2014-Mar-27.65677408)
2.7432e-05 TDB
node 336.8193949791462 3.1802e-05 deg
peri 76.82992071105558 3.3122e-05 deg
i 5.683012893149702 4.0626e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2284  
   data-arc span      42062 days (115.16 yr)  
   first obs. used      1905-09-19  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37431  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:54:34  

Additional Information
 Jupiter MOID = 2.6113 au 
 T_jup = 3.581 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.089128904247151E-16 -1.827044342171658E-15 -2.429891713664208E-13 7.085451391724426E-15 -8.910272436172032E-14 -3.019717404624331E-16
q -1.827044342171658E-15 4.136938012627176E-15 5.307974842072466E-13 -1.580055399222207E-14 1.952872969720368E-13 8.261368645352348E-16
tp -2.429891713664208E-13 5.307974842072466E-13 7.525290380274966E-10 -1.259426818847998E-11 2.60950649828449E-10 -3.931950823853907E-13
node 7.085451391724426E-15 -1.580055399222207E-14 -1.259426818847998E-11 1.01134611359978E-9 -1.009925046391184E-9 2.630997765781036E-11
peri -8.910272436172032E-14 1.952872969720368E-13 2.60950649828449E-10 -1.009925046391184E-9 1.097077415361791E-9 -2.630778793719971E-11
i -3.019717404624331E-16 8.261368645352348E-16 -3.931950823853907E-13 2.630997765781036E-11 -2.630778793719971E-11 1.650489690319697E-11

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 12.30   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 4
diameter diameter 8.456 km 0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 14.339 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2011) Minor Planet Bull. 38, 76-78.]
geometric albedo albedo 0.298   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a medium resolution spectrum published by Chapman and Gaffey (1979)

574 Reginhild (A905 SH)          Discovered 1905-Sep-19 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
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
2006-Jan-04 12:48 00:01 Amphi 0.0284821349423987 0.0284815117316476 0.0284827581532522 1.99751160321154 1.99751150216739 2453740.033649073 1.31462477049371 51.5490613189188 30.9461880861095 -87.2232715940142 137300.879620481 T 37 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:41 2020-Dec-18 01:54

Alternate Designations
 A905 SH = 1947 BB = A912 YB = A922 TB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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