ASTROSAT CZTI

Data Quality Report

Orbit 01410

Creation date: 2024-06-27T14:12:16.331724
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/AS1G04_003T01_9000000234_01410cztM0_level2.evt modeM0/AS1G04_003T01_9000000234_01410cztM0_level2_quad_clean.evt
Size (bytes)1,215,077,760106,286,400
Size1.1 GB 101.4 MB
Events in quadrant A9,984,175682,687
Events in quadrant B9,858,407687,683
Events in quadrant C8,377,251677,989
Events in quadrant D8,102,598669,067

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0347392
B0344191
C0299751
D0291901

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72091401.942017%
B72091221.692329%
C7209210.291303%
D7209630.873908%

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 7524 7209 698 698 9.28% 9.68%
B 7524 7210 657 657 8.73% 9.11%
C 7524 7211 177 177 2.35% 2.45%
D 7524 7210 255 255 3.39% 3.54%

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 15 127 1426327 2630.8 2219 2235 541.3
A 15 233 31615 54.28 2219 2235 541.3
A 13 235 9463 13.35 2219 2235 541.3
B 8 4 915233 1682.65 2285 2303 542.6
B 6 53 118622 214.39 2285 2303 542.6
B 12 52 58859 104.24 2285 2303 542.6
C 15 241 271144 467.55 2052 2120 575.4
C 3 79 34263 55.86 2052 2120 575.4
C 3 111 27003 43.24 2052 2120 575.4
D 9 53 277170 447.48 2029 2097 614.7
D 13 205 78441 124.19 2029 2097 614.7
D 13 169 66038 104.02 2029 2097 614.7

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