ASTROSAT CZTI

Data Quality Report

Orbit 29025

Creation date: 2024-06-27T19:59:20.607039
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/AS1A10_123T02_9000004160_29025cztM0_level2.evt modeM0/AS1A10_123T02_9000004160_29025cztM0_level2_quad_clean.evt
Size (bytes)464,595,840101,168,640
Size443.1 MB 96.5 MB
Events in quadrant A3,219,428651,808
Events in quadrant B3,291,296676,781
Events in quadrant C3,307,130638,623
Events in quadrant D3,783,621616,052

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141462
B0142392
C0142552
D0160162

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6900310.449275%
B6900440.637681%
C6901851.231706%
D6901811.173743%

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 8900 6902 0 0 0.00% 0.00%
B 8900 6902 0 0 0.00% 0.00%
C 8901 6903 0 0 0.00% 0.00%
D 8901 6903 49 49 0.55% 0.71%

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 13 254 11277 63.23 831 813 165.5
A 3 137 8292 45.19 831 813 165.5
A 0 226 6949 37.08 831 813 165.5
B 12 111 19829 120.23 832 810 158.2
B 11 111 18290 110.5 832 810 158.2
B 14 111 17388 104.8 832 810 158.2
C 14 238 130791 684.69 809 813 189.8
C 2 114 16051 80.27 809 813 189.8
C 3 233 8842 42.29 809 813 189.8
D 8 195 271643 1419.16 801 780 190.9
D 1 52 217095 1133.36 801 780 190.9
D 7 80 182576 952.5 801 780 190.9

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