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1669 Dagmar (1934 RS)
Classification: Main-belt Asteroid          SPK-ID: 2001669
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1099282522577554 3.3734e-08  
a 3.14070621249867 1.3653e-08 au
q 2.795453867703617 1.0784e-07 au
i .9401262584977589 3.7226e-06 deg
node 18.95886943550053 0.00022233 deg
peri 178.4114129754346 0.00022296 deg
M 303.4275752796903 1.8271e-05 deg
tp 2459319.978538984381
(2021-Apr-15.47853898)
0.00010387 TDB
period 2033.009449444499
5.57
1.3256e-05
3.629e-08
d
yr
n .177077386481586 1.1546e-09 deg/d
Q 3.485958557293723 1.5154e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3210  
   data-arc span      31278 days (85.63 yr)  
   first obs. used      1934-09-07  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42306  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:28:21  

Additional Information
 Earth MOID = 1.79363 au 
 Jupiter MOID = 1.472 au 
 T_jup = 3.201 
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Orbital Elements at Epoch 2456149.5 (2012-Aug-10.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1144045591354347 3.3244e-08  
q 2.776353254603417 1.0641e-07 au
tp 2455261.428745921465
(2010-Mar-05.92874592)
9.5327e-05 TDB
node 19.10152436696566 0.00022192 deg
peri 179.0520682128537 0.00022252 deg
i .9425817751705896 3.7238e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3210  
   data-arc span      31278 days (85.63 yr)  
   first obs. used      1934-09-07  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42306  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:28:21  

Additional Information
 Jupiter MOID = 1.472 au 
 T_jup = 3.201 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.105136423125271E-15 -3.515673144040101E-15 -4.56528149876667E-13 9.24270026788777E-17 -7.211643805994193E-14 -4.63609279367394E-17
q -3.515673144040101E-15 1.132308840463301E-14 1.495621998176461E-12 -1.896716570188034E-15 2.477825830535367E-13 2.175700306095891E-16
tp -4.56528149876667E-13 1.495621998176461E-12 9.087176335229376E-9 -2.126420591948291E-12 1.578217949539529E-9 6.474988590175816E-14
node 9.24270026788777E-17 -1.896716570188034E-15 -2.126420591948291E-12 4.924711565519829E-8 -4.924036175870662E-8 -8.478620152384152E-11
peri -7.211643805994193E-14 2.477825830535367E-13 1.578217949539529E-9 -4.924036175870662E-8 4.951478197434317E-8 8.478269856226695E-11
i -4.63609279367394E-17 2.175700306095891E-16 6.474988590175816E-14 -8.478620152384152E-11 8.478269856226695E-11 1.386668878230828E-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 10.8   n/a MPO502169 IRAS observations used: 17
diameter diameter 42.377 km 0.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 12. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.035   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
B-V BV 0.730   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=10.16 deg.
U-B UB 0.460   0.045 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=10.16 deg.
Tholen spectral type spec_T G:   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo

1669 Dagmar (1934 RS)          Discovered 1934-Sep-07 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1934 RS = 1943 GE = 1950 PX = 1953 AD = 1957 WA = 1959 CV = 1962 RH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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