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3476 Dongguan (1978 UF2)
Classification: Main-belt Asteroid          SPK-ID: 2003476
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1948932136011109 1.5202e-08  
a 3.159044288451371 1.6792e-08 au
q 2.543367995166848 5.1745e-08 au
i 21.60576851121242 8.6879e-07 deg
node 43.81521358150871 1.3784e-06 deg
peri 25.46841603317203 4.9179e-06 deg
M 153.955644509079 6.6307e-06 deg
tp 2458323.448462708896
(2018-Jul-23.94846271)		 3.6171e-05 TDB
period 2050.841035621645
5.61		 1.6352e-05
4.477e-08		 d
yr
n .1755377397599604 1.3996e-09 deg/d
Q 3.774720581735894 2.0065e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2280  
   data-arc span      16332 days (44.71 yr)  
   first obs. used      1976-05-31  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38671  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:10:17  

Additional Information
 Earth MOID = 1.56923 au 
 Jupiter MOID = 1.69319 au 
 T_jup = 3.068 
[ 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 11.86   n/a E2021B10  
diameter diameter 31.53 km 2.4 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
geometric albedo albedo 0.0309   0.005 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2

3476 Dongguan (1978 UF2)          Discovered 1978-Oct-28 by Purple Mountain Observatory at Nanking
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
1947-Nov-03 11:53 00:02 Jupiter 1.75426713499485 1.75426647702694 1.75426779297294 4.88639654532849 4.78656454335052 2432492.995161334 1.52560656063452 224.604190404531 9.44095817861176 81.6454129810412 16504112.0862498 T 37 CATAB v2.0f-lin.ifort 2021-Apr-12 15:11:37 2021-Apr-12 15:11
1958-Nov-04 21:43 00:01 Jupiter 1.77280305063443 1.77280250212149 1.77280359914797 5.16905131928627 5.07577750183367 2436512.404598300 1.16689768156161 76.1224960360671 18.7161799262953 -74.6957819859602 9963075.72975162 T 37 CATAB v2.0f-lin.ifort 2021-Apr-12 15:11:37 2021-Apr-12 15:11
2066-May-28 10:19 00:01 Jupiter 1.75536795975 1.75536757341722 1.75536834608676 4.86418646810899 4.76395261487333 2475798.930131014 1.1185560470364 151.133610477439 8.54427803026355 83.1190534385214 16063808.9162113 T 37 CATAB v2.0f-lin.ifort 2021-Apr-12 15:11:37 2021-Apr-12 15:11
2077-May-27 18:15 00:01 Jupiter 1.80279860668032 1.80279782077988 1.80279939258147 5.18536844195592 5.09395433282031 2479816.260436845 1.41076569011847 86.1755722750774 24.3900911120944 -68.6288101831257 7879312.64364359 T 37 CATAB v2.0f-lin.ifort 2021-Apr-12 15:11:37 2021-Apr-12 15:11
2184-Dec-17 12:44 00:04 Jupiter 1.75971290859924 1.75971195930233 1.75971385790495 4.8465479203826 4.74619259310426 2519101.030896754 3.72041132115918 216.012117300165 17.4122269557041 77.2874397130767 12263279.4047816 T 37 CATAB v2.0f-lin.ifort 2021-Apr-12 15:11:37 2021-Apr-12 15:11
2195-Dec-15 15:43 00:04 Jupiter 1.83854548532285 1.83854318765957 1.83854778298957 5.21109614342911 5.12192522451606 2523116.155196850 4.00854487122409 174.938279553376 37.0175216826787 -51.3134189850602 4378668.89081976 T 37 CATAB v2.0f-lin.ifort 2021-Apr-12 15:11:37 2021-Apr-12 15:11

Alternate Designations
 1978 UF2 = 1984 WH 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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