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JPL Small-Body Database Browser
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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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1099282519806723 3.4175e-08  
a 3.14070621239014 1.3823e-08 au
q 2.795453868477254 1.0891e-07 au
i .9401263386394162 3.7917e-06 deg
node 18.95886709978316 0.00022235 deg
peri 178.4114151123856 0.00022299 deg
M 303.4275755206855 1.83e-05 deg
tp 2459319.978537606861
(2021-Apr-15.47853761)
0.00010406 TDB
period 2033.009449339121
5.57
1.3422e-05
3.675e-08
d
yr
n .1770773864907646 1.169e-09 deg/d
Q 3.485958556303027 1.5342e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3101  
   data-arc span      31196 days (85.41 yr)  
   first obs. used      1934-09-07  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42864  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:01:34  

Additional Information
 Earth MOID = 1.79363 au 
 Jupiter MOID = 1.472 au 
 T_jup = 3.201 
[ 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 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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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
1941-Feb-18 05:55 00:02 Jupiter 1.60587933082513 1.60587857116876 1.60588009048068 1.87694119388212 1.57098899535583 2430043.746553258 1.56860686316258 53.717638803778 25.4046626017518 -84.7977845478145 1556956.55284741 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 16:01:48 2020-Feb-22 16:01
1951-Jun-25 09:33 00:01 Jupiter 1.51332119376089 1.51332074577787 1.51332164174598 1.61561558856779 1.22097982531198 2433822.898112427 1.28885264440088 150.572550971061 55.0981589427399 67.2479245137931 2770961.97681313 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 16:01:48 2020-Feb-22 16:01
1961-Oct-31 15:50 00:01 Jupiter 1.88437813652226 1.88437746918969 1.88437880385473 3.00769256782765 2.85433361293443 2437604.159889250 1.00202194309175 39.6153729821199 20.0675083053012 -72.6156412447041 2420787.04144331 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 16:01:48 2020-Feb-22 16:01
2025-Mar-04 17:15 < 00:01 Jupiter 1.86406336779612 1.86406301227075 1.86406372332149 2.82206744804634 2.65617641251109 2460739.218958124 0.319530953169685 36.1262414782258 10.2791675558778 -88.0840611385952 3761882.79138707 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 16:01:48 2020-Feb-22 16:01
2035-Jul-09 15:40 < 00:01 Jupiter 1.50974566396948 1.50974534154431 1.50974598639447 1.55266352102366 1.13520521794107 2464518.153124838 0.563722070537333 93.3457340101752 70.641920237341 63.2582829540612 2587262.19776709 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 16:01:48 2020-Feb-22 16:01
2045-Nov-09 20:28 < 00:01 Jupiter 1.63533316392427 1.63533263182384 1.63533369602489 2.05527130315457 1.7855637894336 2468294.352824109 0.827269115313997 66.4954935262831 11.4858739252373 87.4033921080236 2899363.14641162 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 16:01:48 2020-Feb-22 16:01
2119-Jul-26 02:07 00:02 Jupiter 1.68383650064792 1.68383532300957 1.68383767828504 2.12576075458498 1.87424548127716 2495214.588302316 2.36370712158962 47.6192046712134 6.77799760073135 -89.9484080381344 1160813.07429935 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 16:01:48 2020-Feb-22 16:01
2129-Nov-29 02:29 00:03 Jupiter 1.48877074101647 1.48877031116846 1.48877117086744 1.51346216509321 1.07363214912628 2498993.603233915 2.62767679792678 199.338836074697 82.8196577377701 62.5569917610011 2570795.43655168 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 16:01:48 2020-Feb-22 16:01
2140-Apr-03 17:39 00:03 Jupiter 1.79055596819959 1.79055430791634 1.79055762848335 2.67866419661895 2.49582488597162 2502772.235198171 2.85791336210845 107.252217179436 16.9536346328302 -65.9951151169228 2108251.75067905 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 16:01:48 2020-Feb-22 16:01

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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