Observation information
- date-obs: 2024-05-18
- time-obs: 01:25:48.409200000
- date-end: 2024-05-18
- time-end: 08:37:01.387900000
- obs_id: A13_037T01_9000006256
- exposure: 23477.7243392
- sourceid: Cygnus X-2
- observer: ranjeev
- ra_pnt: 326.1714
- dec_pnt: 38.32141
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_037T01_9000006256_46712cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006256_46712cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,894,210,560 | 395,000,640 |
Size | 1.8 GB
| 376.7 MB
|
Events in quadrant A | 23,250,395 | 2,666,337 |
Events in quadrant B | 11,980,164 | 2,748,143 |
Events in quadrant C | 15,692,734 | 2,495,222 |
Events in quadrant D | 17,250,190 | 2,317,133 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 86333 | 2 |
B | 0 | 53712 | 2 |
C | 0 | 65327 | 2 |
D | 0 | 69481 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 506 | 0 |
B | 0 | 506 | 0 |
C | 0 | 506 | 0 |
D | 0 | 506 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 8 | 0 |
B | 0 | 8 | 0 |
C | 0 | 8 | 0 |
D | 0 | 8 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 25188 | 454 | 1.802446% |
B | 25189 | 217 | 0.861487% |
C | 25189 | 1509 | 5.990710% |
D | 25189 | 1428 | 5.669141% |
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 | 25873 | 25191 | 20 | 20 | 0.08% | 0.08% | |
B | 25874 | 25192 | 19 | 19 | 0.07% | 0.08% | |
C | 25874 | 25192 | 1354 | 1354 | 5.23% | 5.37% | |
D | 25874 | 25192 | 1201 | 1201 | 4.64% | 4.77% | |
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 | 10 | 83 | 11899245 | 20803.24 | 2761 | 2695 | 571.9 |
A | 9 | 191 | 573909 | 998.87 | 2761 | 2695 | 571.9 |
A | 13 | 254 | 45399 | 74.68 | 2761 | 2695 | 571.9 |
B | 4 | 171 | 507940 | 924.55 | 2766 | 2678 | 546.5 |
B | 0 | 198 | 232066 | 419.74 | 2766 | 2678 | 546.5 |
B | 12 | 111 | 70440 | 123.99 | 2766 | 2678 | 546.5 |
C | 12 | 2 | 4705620 | 7605.49 | 2627 | 2636 | 618.4 |
C | 14 | 254 | 313717 | 503.07 | 2627 | 2636 | 618.4 |
C | 3 | 233 | 254942 | 408.02 | 2627 | 2636 | 618.4 |
D | 13 | 168 | 2712061 | 4051.72 | 2646 | 2562 | 668.7 |
D | 1 | 52 | 2077527 | 3102.86 | 2646 | 2562 | 668.7 |
D | 13 | 249 | 1136511 | 1695.68 | 2646 | 2562 | 668.7 |
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 | |