| A | B |
|---|---|
| Illustration of Chandra | … |
| Names | Advanced X-ray Astrophysics Facility (AXAF) |
| Mission type | X-ray astronomy |
| Operator | NASA / SAO / CXC |
| COSPAR ID | 1999-040B |
| SATCAT no. | 25867 |
| Website | https://chandra.harvard.edu/ |
| Mission duration | Planned: 5 years Elapsed: 26 years, 11 months, 3 days |
| Spacecraft properties | … |
| Manufacturer | TRW Inc. |
| Launch mass | 5,860 kg (12,930 lb)1 |
| Dry mass | 4,790 kg (10,560 lb)1 |
| Dimensions | Deployed: 13.8 × 19.5 m (45.3 × 64.0 ft)2 Stowed: 11.8 × 4.3 m (38.7 × 14.0 ft)1 |
| Power | 2,350 W2 |
| Start of mission | … |
| Launch date | July 23, 1999, 04:30:59.984 UTC3 |
| Rocket | Space Shuttle Columbia (STS-93) |
| Launch site | Kennedy, LC-39B |
| Orbital parameters | … |
| Reference system | Geocentric |
| Regime | Highly elliptical |
| Semi-major axis | 80,795.9 km (50,204.2 mi) |
| Eccentricity | 0.743972 |
| Perigee altitude | 14,307.9 km (8,890.5 mi) |
| Apogee altitude | 134,527.6 km (83,591.6 mi) |
| Inclination | 76.7156° |
| Period | 3809.3 min |
| RAAN | 305.3107° |
| Argument of perigee | 267.2574° |
| Mean anomaly | 0.3010° |
| Mean motion | 0.3780 rev/day |
| Epoch | September 4, 2015, 04:37:54 UTC4 |
| Revolution no. | 1358 |
| Main telescope | … |
| Type | Wolter type 15 |
| Diameter | 1.2 m (3.9 ft)2 |
| Focal length | 10.0 m (32.8 ft)2 |
| Collecting area | 0.04 m (0.43 sq ft)2 |
| Wavelengths | X-ray: 0.12–12 nm (0.1–10 keV)6 |
| Resolution | 0.5 arcsec2 |
| NASA Great Observatories Large Strategic Science Missions Astrophysics Division | … |
Chandra X-ray Observatory
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Footnotes
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“Chandra X-ray Observatory Quick Facts”. Marshall Space Flight Center. Archived from the original on February 12, 2022. Retrieved September 16, 2017. ↩ ↩2 ↩3
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“Chandra Specifications”. NASA/Harvard. Retrieved September 3, 2015. ↩ ↩2 ↩3 ↩4 ↩5 ↩6
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“International Flight No. 210: STS-93”. Spacefacts.de. Retrieved April 29, 2018. ↩
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“Chandra X-Ray Observatory - Orbit”. Heavens Above. September 3, 2015. Retrieved September 3, 2015. ↩
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“The Chandra X-ray Observatory: Overview”. Chandra X-ray Center. Retrieved September 3, 2015. ↩
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Ridpath, Ian (2012). The Dictionary of Astronomy (2nd ed.). Oxford University Press. p. 82. ISBN 978-0-19-960905-5. ↩