ASTROSAT CZTI

Data Quality Report

Orbit 17367

Creation date: 2024-06-27T17:35:39.935574
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/AS1T03_032T01_9000002564_17367cztM0_level2.evt modeM0/AS1T03_032T01_9000002564_17367cztM0_level2_quad_clean.evt
Size (bytes)510,595,20072,532,800
Size486.9 MB 69.2 MB
Events in quadrant A3,506,669441,481
Events in quadrant B3,531,590448,565
Events in quadrant C3,564,428424,348
Events in quadrant D4,405,533414,151

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146112
B0146022
C0147832
D0175532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6703771.148739%
B6703731.089065%
C67031031.536625%
D67032203.282112%

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 7933 6704 0 0 0.00% 0.00%
B 7933 6704 0 0 0.00% 0.00%
C 7933 6704 0 0 0.00% 0.00%
D 7933 6704 100 100 1.26% 1.49%

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 6 16 11795 60.31 910 892 180.8
A 0 226 7977 39.19 910 892 180.8
A 12 194 6475 30.88 910 892 180.8
B 12 111 19455 110.52 900 878 168.1
B 11 111 17099 96.5 900 878 168.1
B 14 111 15058 84.36 900 878 168.1
C 14 238 136329 677.74 870 879 199.9
C 3 233 25085 121.12 870 879 199.9
C 0 79 10701 49.15 870 879 199.9
D 13 232 559044 2643.66 875 851 211.1
D 10 70 202204 953.63 875 851 211.1
D 13 189 185411 874.09 875 851 211.1

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