Observation information
- date-obs: 2016-01-08
- time-obs: 19:57:08.218000000
- date-end: 2016-01-09
- time-end: 16:06:48.229500000
- obs_id: G02_016T01_9000000258
- exposure: 40169.7613717
- 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/AS1G02_016T01_9000000258cztM0_level2.evt
| modeM0/AS1G02_016T01_9000000258cztM0_level2_quad_clean.evt
|
Size (bytes) | 10,619,196,480 | 807,710,400 |
Size | 9.9 GB
| 770.3 MB
|
Events in quadrant A | 81,381,769 | 5,051,489 |
Events in quadrant B | 79,110,729 | 5,147,944 |
Events in quadrant C | 74,243,195 | 5,052,702 |
Events in quadrant D | 82,664,445 | 4,827,963 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 287158 | 0 |
B | 0 | 280447 | 0 |
C | 0 | 266070 | 0 |
D | 0 | 291269 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 86 | 0 |
B | 0 | 86 | 0 |
C | 0 | 86 | 0 |
D | 0 | 86 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1302 | 0 |
B | 0 | 1302 | 0 |
C | 0 | 1302 | 0 |
D | 0 | 1302 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 63934 | 847 | 1.324804% |
B | 63934 | 300 | 0.469234% |
C | 63934 | 233 | 0.364438% |
D | 63934 | 2417 | 3.780461% |
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 | 72581 | 63945 | 4488 | 4488 | 6.18% | 7.02% |  |
B | 72581 | 63946 | 2725 | 2725 | 3.75% | 4.26% |  |
C | 72581 | 63944 | 2120 | 2120 | 2.92% | 3.32% |  |
D | 72581 | 63945 | 6466 | 6466 | 8.91% | 10.11% |  |
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 | 14 | 5 | 5043535 | 1052.95 | 19951 | 20111 | 4770.8 |
A | 13 | 9 | 52092 | 6.7 | 19951 | 20111 | 4770.8 |
A | 8 | 14 | 47610 | 5.76 | 19951 | 20111 | 4770.8 |
B | 0 | 234 | 178006 | 32.27 | 20792 | 20947 | 4866.5 |
B | 4 | 200 | 113667 | 19.05 | 20792 | 20947 | 4866.5 |
B | 15 | 85 | 70633 | 10.21 | 20792 | 20947 | 4866.5 |
C | 8 | 208 | 204247 | 35.09 | 18927 | 19623 | 5261.0 |
C | 9 | 54 | 143704 | 23.59 | 18927 | 19623 | 5261.0 |
C | 12 | 4 | 94837 | 14.3 | 18927 | 19623 | 5261.0 |
D | 10 | 84 | 7906817 | 1413.76 | 18251 | 18981 | 5579.3 |
D | 7 | 207 | 4846905 | 865.32 | 18251 | 18981 | 5579.3 |
D | 13 | 169 | 541257 | 93.61 | 18251 | 18981 | 5579.3 |
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 |  |