Observation information
- date-obs: 2023-11-27
- time-obs: 04:08:59.695600000
- date-end: 2023-11-27
- time-end: 06:18:49.694500000
- obs_id: A13_012T02_9000005950
- exposure: 7473.17649364
- 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_44146cztM0_level2.fits
| modeM0/AS1A13_012T02_9000005950_44146cztM0_level2_quad_clean.evt
|
Size (bytes) | 481,512,960 | 123,733,440 |
Size | 459.2 MB
| 118.0 MB
|
Events in quadrant A | 4,878,509 | 825,642 |
Events in quadrant B | 3,882,418 | 844,007 |
Events in quadrant C | 3,464,882 | 812,762 |
Events in quadrant D | 4,993,053 | 722,303 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 156 | 0 |
B | 0 | 156 | 0 |
C | 0 | 156 | 0 |
D | 0 | 156 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 19805 | 1 |
B | 0 | 17136 | 0 |
C | 0 | 16220 | 0 |
D | 0 | 20473 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7790 | 55 | 0.706033% |
B | 7790 | 113 | 1.450578% |
C | 7790 | 16 | 0.205392% |
D | 7790 | 282 | 3.620026% |
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 | 7790 | 7790 | 6 | 6 | 0.08% | 0.08% |  |
B | 7790 | 7790 | 62 | 62 | 0.80% | 0.80% |  |
C | 7790 | 7790 | 7 | 7 | 0.09% | 0.09% |  |
D | 7790 | 7790 | 260 | 260 | 3.34% | 3.34% |  |
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 | 1286233 | 7103.46 | 857 | 838 | 181.0 |
A | 15 | 223 | 237051 | 1305.38 | 857 | 838 | 181.0 |
A | 7 | 3 | 22104 | 117.52 | 857 | 838 | 181.0 |
B | 5 | 172 | 235466 | 1388.9 | 855 | 828 | 168.9 |
B | 0 | 189 | 152615 | 898.48 | 855 | 828 | 168.9 |
B | 0 | 200 | 82827 | 485.38 | 855 | 828 | 168.9 |
C | 14 | 254 | 88250 | 440.44 | 837 | 844 | 198.4 |
C | 12 | 16 | 62876 | 312.58 | 837 | 844 | 198.4 |
C | 1 | 241 | 22058 | 106.9 | 837 | 844 | 198.4 |
D | 2 | 249 | 472167 | 2247.09 | 821 | 794 | 209.8 |
D | 4 | 235 | 392070 | 1865.26 | 821 | 794 | 209.8 |
D | 13 | 249 | 248147 | 1179.16 | 821 | 794 | 209.8 |
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 |  |