Observation information
- date-obs: 2023-11-25
- time-obs: 20:55:54.724900000
- date-end: 2023-11-25
- time-end: 22:56:10.724000000
- obs_id: A13_012T02_9000005950
- exposure: 2037.0043779
- 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_44127cztM0_level2.fits
| modeM0/AS1A13_012T02_9000005950_44127cztM0_level2_quad_clean.evt
|
Size (bytes) | 725,520,960 | 83,880,000 |
Size | 691.9 MB
| 80.0 MB
|
Events in quadrant A | 12,405,445 | 238,652 |
Events in quadrant B | 3,203,685 | 715,618 |
Events in quadrant C | 2,997,217 | 693,278 |
Events in quadrant D | 7,785,477 | 474,026 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 0 |
B | 0 | 13 | 0 |
C | 0 | 13 | 0 |
D | 0 | 13 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 122 | 0 |
B | 0 | 122 | 0 |
C | 0 | 122 | 0 |
D | 0 | 122 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 40926 | 1 |
B | 0 | 13547 | 1 |
C | 0 | 13003 | 1 |
D | 0 | 27268 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5987 | 4191 | 70.001670% |
B | 5987 | 127 | 2.121263% |
C | 5987 | 70 | 1.169200% |
D | 5987 | 1709 | 28.545181% |
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 | 7217 | 5988 | 3383 | 3383 | 46.88% | 56.50% |  |
B | 7217 | 5988 | 46 | 46 | 0.64% | 0.77% |  |
C | 7217 | 5988 | 30 | 30 | 0.42% | 0.50% |  |
D | 7217 | 5988 | 1400 | 1400 | 19.40% | 23.38% |  |
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 | 7689697 | 80834.12 | 454 | 445 | 95.1 |
A | 14 | 238 | 2122221 | 22305.41 | 454 | 445 | 95.1 |
A | 10 | 83 | 797830 | 8382.6 | 454 | 445 | 95.1 |
B | 5 | 235 | 180034 | 1305.15 | 701 | 682 | 137.4 |
B | 5 | 172 | 85091 | 614.25 | 701 | 682 | 137.4 |
B | 0 | 219 | 54832 | 394.05 | 701 | 682 | 137.4 |
C | 1 | 241 | 147183 | 896.52 | 694 | 701 | 163.4 |
C | 14 | 254 | 59678 | 360.96 | 694 | 701 | 163.4 |
C | 11 | 16 | 49087 | 296.14 | 694 | 701 | 163.4 |
D | 1 | 52 | 3797272 | 25419.33 | 590 | 571 | 149.4 |
D | 2 | 249 | 1039352 | 6954.75 | 590 | 571 | 149.4 |
D | 13 | 171 | 135295 | 901.99 | 590 | 571 | 149.4 |
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 |  |