Observation information
- date-obs: 2019-03-21
- time-obs: 16:34:31.636100000
- date-end: 2019-03-24
- time-end: 01:04:50.649400000
- obs_id: A05_173T01_9000002812
- exposure: 101357.55755
- sourceid: GRS 1915+105
- observer: rawatdivya
- ra_pnt: 288.7991
- dec_pnt: 10.94602
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A05_173T01_9000002812cztM0_level2_bc.evt
| modeM0/AS1A05_173T01_9000002812cztM0_level2_quad_clean.evt
|
Size (bytes) | 6,151,904,640 | 2,192,448,960 |
Size | 5.7 GB
| 2.0 GB
|
Events in quadrant A | 37,875,560 | 14,049,953 |
Events in quadrant B | 41,604,986 | 14,149,540 |
Events in quadrant C | 40,970,253 | 13,556,516 |
Events in quadrant D | 54,364,580 | 13,087,048 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 3444 | 0 |
B | 0 | 3444 | 0 |
C | 0 | 3444 | 0 |
D | 0 | 3444 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 246 | 0 |
B | 0 | 246 | 0 |
C | 0 | 246 | 0 |
D | 0 | 246 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 355269 | 0 |
B | 0 | 373560 | 0 |
C | 0 | 376081 | 0 |
D | 0 | 419200 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 168821 | 1963 | 1.162770% |
B | 168821 | 3114 | 1.844557% |
C | 168821 | 4029 | 2.386551% |
D | 168821 | 7228 | 4.281458% |
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 | 203133 | 168826 | 34 | 34 | 0.02% | 0.02% |  |
B | 203133 | 168822 | 48 | 48 | 0.02% | 0.03% |  |
C | 203133 | 168827 | 82 | 82 | 0.04% | 0.05% |  |
D | 203133 | 168814 | 1325 | 1325 | 0.65% | 0.78% |  |
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 | 8 | 144 | 1194305 | 585.6 | 9168 | 8983 | 2024.1 |
A | 4 | 2 | 306455 | 146.96 | 9168 | 8983 | 2024.1 |
A | 15 | 174 | 268427 | 128.18 | 9168 | 8983 | 2024.1 |
B | 10 | 245 | 1012024 | 576.59 | 9178 | 8951 | 1739.7 |
B | 7 | 220 | 978040 | 557.06 | 9178 | 8951 | 1739.7 |
B | 0 | 229 | 818815 | 465.53 | 9178 | 8951 | 1739.7 |
C | 3 | 233 | 5532711 | 2705.42 | 8730 | 8693 | 2041.8 |
C | 0 | 207 | 1034257 | 502.28 | 8730 | 8693 | 2041.8 |
C | 9 | 54 | 618056 | 298.44 | 8730 | 8693 | 2041.8 |
D | 12 | 110 | 7225105 | 3538.07 | 8828 | 8521 | 2039.7 |
D | 7 | 238 | 5061044 | 2477.1 | 8828 | 8521 | 2039.7 |
D | 7 | 38 | 3209760 | 1569.47 | 8828 | 8521 | 2039.7 |
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 |  |