ASTROSAT CZTI

Data Quality Report

Orbit 09707

Creation date: 2024-06-27T15:49:36.122123
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/AS1A03_029T01_9000001384_09707cztM0_level2.evt modeM0/AS1A03_029T01_9000001384_09707cztM0_level2_quad_clean.evt
Size (bytes)434,240,64087,177,600
Size414.1 MB 83.1 MB
Events in quadrant A3,378,812520,518
Events in quadrant B3,128,720569,806
Events in quadrant C2,912,143559,003
Events in quadrant D3,287,717535,727

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145242
B0135061
C0131771
D0142161

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65125568.538084%
B6512330.506757%
C6512170.261057%
D6512741.136364%

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 7527 6512 11 11 0.15% 0.17%
B 7527 6512 4 4 0.05% 0.06%
C 7527 6512 3 3 0.04% 0.05%
D 7527 6512 60 60 0.80% 0.92%

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 14 111 566636 3787.92 727 711 149.4
A 15 174 8049 49.11 727 711 149.4
A 0 226 6648 39.73 727 711 149.4
B 0 214 69106 464.61 769 750 147.1
B 0 189 21805 143.11 769 750 147.1
B 12 111 15942 103.26 769 750 147.1
C 14 234 19105 106.55 739 743 172.3
C 14 238 5965 30.3 739 743 172.3
C 13 61 5464 27.39 739 743 172.3
D 1 52 344654 1907.35 726 707 180.3
D 10 172 40755 222.09 726 707 180.3
D 12 233 35136 190.93 726 707 180.3

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