Observation information
- date-obs: 2016-11-02
- time-obs: 01:46:09.486900000
- date-end: 2016-11-02
- time-end: 14:44:57.457400000
- obs_id: G06_027T01_9000000770
- exposure: 14451.2450966
- sourceid: GRS1915+105
- observer: santoshv
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G06_027T01_9000000770cztM0_level2_bc.evt
| modeM0/AS1G06_027T01_9000000770cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,014,128,640 | 287,890,560 |
Size | 967.1 MB
| 274.6 MB
|
Events in quadrant A | 5,896,070 | 1,802,009 |
Events in quadrant B | 5,197,396 | 1,854,480 |
Events in quadrant C | 4,667,289 | 1,848,671 |
Events in quadrant D | 13,325,902 | 1,577,352 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 53362 | 0 |
B | 0 | 50963 | 0 |
C | 0 | 49525 | 0 |
D | 0 | 76184 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 39 | 0 |
B | 0 | 40 | 0 |
C | 0 | 40 | 0 |
D | 0 | 40 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 502 | 0 |
B | 0 | 488 | 0 |
C | 0 | 490 | 0 |
D | 0 | 496 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 23852 | 842 | 3.530102% |
B | 23978 | 480 | 2.001835% |
C | 24004 | 271 | 1.128979% |
D | 23055 | 2348 | 10.184342% |
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 | 46104 | 25042 | 101 | 101 | 0.22% | 0.40% |  |
B | 46104 | 25092 | 0 | 0 | 0.00% | 0.00% |  |
C | 46104 | 25110 | 0 | 0 | 0.00% | 0.00% |  |
D | 46103 | 24501 | 799 | 799 | 1.73% | 3.26% |  |
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 | 4 | 2 | 1117467 | 4314.63 | 1157 | 1131 | 258.7 |
A | 8 | 192 | 146410 | 561.5 | 1157 | 1131 | 258.7 |
A | 7 | 16 | 70749 | 269.07 | 1157 | 1131 | 258.7 |
B | 15 | 204 | 234232 | 1013.16 | 1187 | 1152 | 230.1 |
B | 0 | 219 | 93942 | 403.34 | 1187 | 1152 | 230.1 |
B | 0 | 214 | 91481 | 392.64 | 1187 | 1152 | 230.1 |
C | 9 | 68 | 49606 | 185.63 | 1161 | 1142 | 261.1 |
C | 1 | 16 | 25819 | 94.52 | 1161 | 1142 | 261.1 |
C | 8 | 128 | 21759 | 78.97 | 1161 | 1142 | 261.1 |
D | 1 | 20 | 5621138 | 21758.81 | 1073 | 1028 | 258.3 |
D | 2 | 63 | 1449721 | 5608.76 | 1073 | 1028 | 258.3 |
D | 1 | 239 | 1015659 | 3928.24 | 1073 | 1028 | 258.3 |
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 |  |