ASTROSAT CZTI

Data Quality Report

Orbit 15165

Creation date: 2024-06-27T17:04:38.023649
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/AS1A04_218T08_9000002236_15165cztM0_level2.evt modeM0/AS1A04_218T08_9000002236_15165cztM0_level2_quad_clean.evt
Size (bytes)633,274,560136,506,240
Size603.9 MB 130.2 MB
Events in quadrant A4,840,429880,495
Events in quadrant B4,424,320898,355
Events in quadrant C4,727,832878,666
Events in quadrant D4,563,966840,153

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01880
B01880
C01880
D01880

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0207283
B0192452
C0201992
D0201012

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9177630.686499%
B9177590.642912%
C9177530.577531%
D9177600.653808%

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 11393 9180 0 0 0.00% 0.00%
B 11393 9179 2 2 0.02% 0.02%
C 11393 9180 15 15 0.13% 0.16%
D 11393 9180 31 31 0.27% 0.34%

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 15 239 617183 2803.71 1091 1070 219.7
A 12 189 24635 107.24 1091 1070 219.7
A 0 226 9755 39.52 1091 1070 219.7
B 3 64 43135 205.45 1100 1072 204.7
B 12 111 23957 111.78 1100 1072 204.7
B 4 48 20802 96.37 1100 1072 204.7
C 3 233 436922 1780.29 1065 1070 244.8
C 3 9 103171 417.04 1065 1070 244.8
C 9 236 24983 97.67 1065 1070 244.8
D 2 16 310666 1215.34 1055 1025 254.8
D 2 120 158548 618.28 1055 1025 254.8
D 2 234 37189 141.94 1055 1025 254.8

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