ASTROSAT CZTI

Data Quality Report

Orbit 30422

Creation date: 2024-06-27T20:15:02.318829
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1C05_019T04_9000004376_30422cztM0_level2.evt modeM0/AS1C05_019T04_9000004376_30422cztM0_level2_quad_clean.evt
Size (bytes)571,682,88092,635,200
Size545.2 MB 88.3 MB
Events in quadrant A3,827,967597,144
Events in quadrant B5,680,669592,026
Events in quadrant C3,565,080571,362
Events in quadrant D3,777,497568,936

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158331
B0216371
C0147701
D0155362

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68301201.756955%
B68301832.679356%
C68301882.752562%
D6829680.995753%

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 7840 6830 34 34 0.43% 0.50%
B 7840 6830 19 19 0.24% 0.28%
C 7840 6830 0 0 0.00% 0.00%
D 7839 6829 15 15 0.19% 0.22%

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 0 13 488580 2830.74 859 842 172.3
A 8 192 19847 110.3 859 842 172.3
A 13 254 12673 68.66 859 842 172.3
B 6 159 1871141 11621.24 842 823 160.9
B 0 229 395699 2453.57 842 823 160.9
B 4 80 75928 466.67 842 823 160.9
C 3 233 188836 988.23 816 820 190.3
C 14 238 151446 791.71 816 820 190.3
C 14 254 28240 144.12 816 820 190.3
D 13 104 222850 1039.44 824 807 213.6
D 12 227 188837 880.22 824 807 213.6
D 8 195 94892 440.44 824 807 213.6

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