ASTROSAT CZTI

Data Quality Report

Orbit 05096

Creation date: 2024-06-27T14:51:15.422306
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/AS1G05_105T01_9000000644_05096cztM0_level2.evt modeM0/AS1G05_105T01_9000000644_05096cztM0_level2_quad_clean.evt
Size (bytes)510,707,52070,657,920
Size487.0 MB 67.4 MB
Events in quadrant A3,214,095440,432
Events in quadrant B3,754,920440,756
Events in quadrant C3,073,206414,866
Events in quadrant D4,966,737373,331

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140203
B0154242
C0138732
D0195212

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67421462.165530%
B67421752.595669%
C67421101.631563%
D674272410.738653%

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 7882 6743 1 1 0.01% 0.01%
B 7882 6743 12 12 0.15% 0.18%
C 7882 6743 1 1 0.01% 0.01%
D 7882 6743 474 474 6.01% 7.03%

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 50 34397 202.04 820 802 166.3
A 4 2 12912 72.83 820 802 166.3
A 0 226 8065 43.68 820 802 166.3
B 4 80 263184 1691.93 821 804 155.1
B 15 204 220815 1418.71 821 804 155.1
B 0 219 26982 168.81 821 804 155.1
C 1 16 10973 56.74 782 782 179.6
C 12 4 8714 44.16 782 782 179.6
C 13 61 6424 31.41 782 782 179.6
D 13 235 1258550 6925.42 747 724 181.6
D 13 239 492942 2710.08 747 724 181.6
D 12 22 197551 1083.7 747 724 181.6

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