Observation information
- date-obs: 2015-10-11
- time-obs: 12:39:42.789100000
- date-end: 2015-10-11
- time-end: 14:47:26.777400000
- obs_id: P01_140T01_9000000018
- exposure: 4798.28286944
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5635
- dec_pnt: 35.20176
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_140T01_9000000018_00200cztM0_level2.evt
| modeM0/AS1P01_140T01_9000000018_00200cztM0_level2_quad_clean.evt
|
| Size (bytes) | 966,862,080 | 89,424,000 |
| Size | 922.1 MB
| 85.3 MB
|
| Events in quadrant A | 7,334,614 | 586,599 |
| Events in quadrant B | 7,195,669 | 588,739 |
| Events in quadrant C | 6,577,938 | 563,702 |
| Events in quadrant D | 7,775,726 | 550,602 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26088 | 2 |
| B | 0 | 25657 | 1 |
| C | 0 | 23848 | 1 |
| D | 0 | 27412 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6043 | 7 | 0.115837% |
| B | 6008 | 4 | 0.066578% |
| C | 5926 | 3 | 0.050624% |
| D | 5999 | 165 | 2.750458% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 7665 | 6045 | 201 | 201 | 2.62% | 3.33% |  |
| B | 7665 | 6011 | 116 | 116 | 1.51% | 1.93% |  |
| C | 7665 | 5929 | 52 | 52 | 0.68% | 0.88% |  |
| D | 7665 | 6002 | 496 | 496 | 6.47% | 8.26% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 0 | 253 | 82355 | 199.13 | 1857 | 1839 | 404.3 |
| A | 0 | 6 | 40335 | 95.21 | 1857 | 1839 | 404.3 |
| A | 13 | 9 | 10415 | 21.21 | 1857 | 1839 | 404.3 |
| B | 8 | 233 | 101421 | 234.4 | 1828 | 1838 | 424.8 |
| B | 5 | 47 | 55939 | 127.34 | 1828 | 1838 | 424.8 |
| B | 0 | 183 | 17378 | 36.58 | 1828 | 1838 | 424.8 |
| C | 0 | 186 | 16252 | 31.13 | 1662 | 1727 | 466.6 |
| C | 1 | 192 | 5811 | 8.75 | 1662 | 1727 | 466.6 |
| C | 10 | 33 | 5755 | 8.63 | 1662 | 1727 | 466.6 |
| D | 2 | 25 | 538382 | 1060.03 | 1669 | 1723 | 506.3 |
| D | 1 | 4 | 247528 | 485.52 | 1669 | 1723 | 506.3 |
| D | 14 | 23 | 117848 | 229.37 | 1669 | 1723 | 506.3 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |