Observation information
- date-obs: 2024-04-16
- time-obs: 16:29:15.413400000
- date-end: 2024-04-16
- time-end: 18:33:58.035700000
- obs_id: A13_094T02_9000006190
- exposure: 6111.19679129
- sourceid: NGC 6251
- observer: sannagulati
- ra_pnt: 248.1332
- dec_pnt: 82.53789
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_094T02_9000006190_46244cztM0_level2.fits
| modeM0/AS1A13_094T02_9000006190_46244cztM0_level2_quad_clean.evt
|
Size (bytes) | 479,842,560 | 106,381,440 |
Size | 457.6 MB
| 101.5 MB
|
Events in quadrant A | 6,065,884 | 694,498 |
Events in quadrant B | 4,395,376 | 726,168 |
Events in quadrant C | 3,073,694 | 709,720 |
Events in quadrant D | 3,728,064 | 642,470 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 128 | 0 |
B | 0 | 128 | 0 |
C | 0 | 128 | 0 |
D | 0 | 128 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22542 | 0 |
B | 0 | 17566 | 0 |
C | 0 | 13837 | 0 |
D | 0 | 15623 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6433 | 263 | 4.088295% |
B | 6434 | 161 | 2.502331% |
C | 6434 | 126 | 1.958346% |
D | 6434 | 201 | 3.124029% |
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 | 7483 | 6433 | 30 | 30 | 0.40% | 0.47% |  |
B | 7484 | 6434 | 30 | 30 | 0.40% | 0.47% |  |
C | 7483 | 6433 | 47 | 47 | 0.63% | 0.73% |  |
D | 7484 | 6434 | 127 | 127 | 1.70% | 1.97% |  |
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 | 3259451 | 22112.1 | 705 | 689 | 147.4 |
A | 14 | 235 | 27653 | 182.96 | 705 | 689 | 147.4 |
A | 13 | 248 | 20023 | 131.19 | 705 | 689 | 147.4 |
B | 3 | 112 | 1293079 | 9553.22 | 708 | 687 | 135.3 |
B | 4 | 171 | 149123 | 1097.22 | 708 | 687 | 135.3 |
B | 5 | 32 | 63968 | 467.76 | 708 | 687 | 135.3 |
C | 12 | 2 | 280215 | 1711.16 | 705 | 708 | 163.3 |
C | 3 | 9 | 20051 | 118.42 | 705 | 708 | 163.3 |
C | 1 | 3 | 6751 | 37.0 | 705 | 708 | 163.3 |
D | 12 | 1 | 366105 | 2095.81 | 702 | 680 | 174.4 |
D | 13 | 249 | 223854 | 1279.96 | 702 | 680 | 174.4 |
D | 12 | 233 | 116009 | 661.44 | 702 | 680 | 174.4 |
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 |  |