Observation information
- date-obs: 2023-11-25
- time-obs: 22:29:19.724000000
- date-end: 2023-11-26
- time-end: 00:41:07.722100000
- obs_id: A13_012T02_9000005950
- exposure: 4957.54733855
- sourceid: NGC4725
- observer: jyoti
- ra_pnt: 192.6107
- dec_pnt: 25.50081
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_012T02_9000005950_44128cztM0_level2.fits
| modeM0/AS1A13_012T02_9000005950_44128cztM0_level2_quad_clean.evt
|
Size (bytes) | 584,179,200 | 105,356,160 |
Size | 557.1 MB
| 100.5 MB
|
Events in quadrant A | 9,748,789 | 560,685 |
Events in quadrant B | 3,434,515 | 768,913 |
Events in quadrant C | 3,197,715 | 742,218 |
Events in quadrant D | 4,726,292 | 653,396 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 13 | 0 |
C | 0 | 13 | 0 |
D | 0 | 13 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 136 | 0 |
B | 0 | 136 | 0 |
C | 0 | 136 | 0 |
D | 0 | 136 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 33703 | 2 |
B | 0 | 14911 | 2 |
C | 0 | 14319 | 2 |
D | 0 | 18744 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6664 | 1968 | 29.531813% |
B | 6664 | 127 | 1.905762% |
C | 6664 | 77 | 1.155462% |
D | 6664 | 320 | 4.801921% |
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 | 7684 | 6665 | 1526 | 1526 | 19.86% | 22.90% |  |
B | 7684 | 6664 | 33 | 33 | 0.43% | 0.50% |  |
C | 7684 | 6664 | 44 | 44 | 0.57% | 0.66% |  |
D | 7684 | 6664 | 252 | 252 | 3.28% | 3.78% |  |
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 | 15 | 223 | 4248731 | 29750.89 | 683 | 670 | 142.8 |
A | 14 | 238 | 1490208 | 10431.84 | 683 | 670 | 142.8 |
A | 10 | 83 | 1283734 | 8985.82 | 683 | 670 | 142.8 |
B | 5 | 235 | 140909 | 928.79 | 767 | 744 | 150.9 |
B | 5 | 172 | 119573 | 787.41 | 767 | 744 | 150.9 |
B | 0 | 219 | 51893 | 338.93 | 767 | 744 | 150.9 |
C | 14 | 254 | 159339 | 891.91 | 752 | 759 | 177.8 |
C | 1 | 241 | 80461 | 448.27 | 752 | 759 | 177.8 |
C | 4 | 111 | 19181 | 103.61 | 752 | 759 | 177.8 |
D | 1 | 52 | 848262 | 4471.17 | 739 | 715 | 189.6 |
D | 5 | 235 | 282402 | 1486.02 | 739 | 715 | 189.6 |
D | 2 | 249 | 268258 | 1411.4 | 739 | 715 | 189.6 |
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 |  |