从张江高科往北看（金桥），19：21左右
佳能S3，15秒钟



http://www.flickr.com/photos/msittig/3503478989/sizes/o/

附件:

---

  IMG_7499.jpg (69.62 KB)

帮你把铱星闪光数据发上来一下，坐标我设的是上海：

19h20m55s Iridium 53

Flare from MMA2 (Left antenna) Magnitude=-6.3mag
Azimuth=348.8° N altitude= 27.8° in constellation Cepheus
RA= 3h14.0m Dec=+79°41' distance=1435km
Flare angle=0.05°
to flare center line, closest point →MapIt: Longitude=121.486° E Latitude=+31.228° (WGS84) Distance=1.5 km Azimuth= 96.7° E
Satellite above: longitude=118.8° E latitude=+41.3° height above Earth=782.3 km distance to satellite=1436.4 km
Altitude of sun=-9.7°

H-A预报-7等。53号铱星是于5月5日19:10:37出现于地平，19:18:08达到最大仰角（68度），19:25:41落入地平。

最近上海天气条件不错啊，连续的晴天。

************************************************************

First valid epoch is 19. Feb 1998
Selected (next earlier) epoch is 5. May 2009

Dimensions: 4 m x 1.8 m, cylindrical
Brightness: 6.5 mag (at 1000 km and 50% illuminated) 5.2 mag (at perigee and full illumination)
NORAD Catalog Nr: 25173
International Designator: 1998-010E

Perigee Height: 775.8 km
Apogee Height: 779.5 km
Orbit Period: 100.4 min

Kepler Elements
Semi-major Axis: 7155.8 km
Eccentricity: 0.0002573
Inclination: 86.3971°
Argument of Perigee: 82.0091°
Right Ascension of Ascending Node: 149.3684°
Mean Anomaly at Epoch: 278.1395°
Susceptibility to Drag B*: -2.0709e-05 1/earth radii
Revolutions per Day: 14.34220367
Number of Orbits since Launch: 58684

Epoch (UTC): 5. May 2009 12:49:54 (JD=2454957.03465348)

State Vector
Position Vector: x = -6159.112 km
y = 3645.986 km
z = 14.887 km
Velocity Vector: vx = -0.2239 km/s
vy = -0.4124 km/s
vz = 7.448 km/s

Two-Line Elements

Iridium 53 4.0 1.8 0.0 6.5 d 4.3
1 25173U 98010E 09125.53465348 -.00000038 00000-0 -20709-4 0 5510
2 25173 086.3971 149.3684 0002573 082.0091 278.1395 14.34220367586844

附件:

---

  passgif.gif (12.67 KB)


  PassGTrackLargeGraphic.jpg (51.71 KB)


  上海未来天气预测.JPG (94.75 KB)


  过境图.JPG (34.99 KB)

如果是第一次拍的话不错了。
铱星轨迹前后似乎不太对称。继续努力。