Observation information
- date-obs: 2025-05-01
- time-obs: 10:39:32.828200000
- date-end: 2025-05-01
- time-end: 16:11:09.786100000
- obs_id: C09_011T05_9000006466
- exposure: 10009.8009573
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_011T05_9000006466_51881cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51881cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,100,424,320 | 234,460,800 |
Size | 2.0 GB
| 223.6 MB
|
Events in quadrant A | 16,051,469 | 1,604,741 |
Events in quadrant B | 13,402,383 | 1,815,480 |
Events in quadrant C | 14,300,040 | 1,568,577 |
Events in quadrant D | 32,539,223 | 805,826 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 382 | 0 |
B | 0 | 382 | 0 |
C | 0 | 382 | 0 |
D | 0 | 382 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 60655 | 2 |
B | 0 | 52759 | 2 |
C | 0 | 55745 | 3 |
D | 0 | 109636 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 18907 | 1318 | 6.970963% |
B | 18908 | 972 | 5.140681% |
C | 18907 | 1128 | 5.966044% |
D | 18907 | 9778 | 51.716296% |
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 | 19897 | 18909 | 901 | 901 | 4.53% | 4.76% |  |
B | 19898 | 18910 | 483 | 483 | 2.43% | 2.55% |  |
C | 19897 | 18909 | 913 | 913 | 4.59% | 4.83% |  |
D | 19897 | 18908 | 7549 | 7549 | 37.94% | 39.92% |  |
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 | 11 | 3 | 1554111 | 3163.47 | 1961 | 1913 | 490.7 |
A | 12 | 3 | 1016173 | 2067.12 | 1961 | 1913 | 490.7 |
A | 4 | 175 | 936667 | 1905.08 | 1961 | 1913 | 490.7 |
B | 4 | 170 | 1632268 | 3890.39 | 1969 | 1900 | 419.1 |
B | 10 | 44 | 1214068 | 2892.48 | 1969 | 1900 | 419.1 |
B | 1 | 223 | 723134 | 1721.01 | 1969 | 1900 | 419.1 |
C | 15 | 192 | 1296274 | 2457.52 | 1921 | 1904 | 526.7 |
C | 15 | 147 | 946962 | 1794.31 | 1921 | 1904 | 526.7 |
C | 15 | 178 | 775344 | 1468.47 | 1921 | 1904 | 526.7 |
D | 11 | 129 | 12333336 | 30483.96 | 1427 | 1369 | 404.5 |
D | 12 | 17 | 6498129 | 16059.64 | 1427 | 1369 | 404.5 |
D | 6 | 42 | 1700721 | 4200.71 | 1427 | 1369 | 404.5 |
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 |  |