ASTROSAT CZTI

Data Quality Report

Orbit 04561

Creation date: 2024-06-27T14:43:48.544415
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_233T10_9000000570_04561cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04561cztM0_level2_quad_clean.evt
Size (bytes)545,132,16077,371,200
Size519.9 MB 73.8 MB
Events in quadrant A3,205,344496,007
Events in quadrant B3,243,772495,102
Events in quadrant C3,810,045484,656
Events in quadrant D5,813,959418,213

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139182
B0138721
C0157201
D0218761

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64281562.426882%
B64281512.349098%
C64282834.402614%
D6428116218.077162%

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 7403 6429 22 22 0.30% 0.34%
B 7403 6429 4 4 0.05% 0.06%
C 7403 6429 151 151 2.04% 2.35%
D 7403 6428 898 898 12.13% 13.97%

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 10 253 266800 1721.75 757 739 154.5
A 8 15 18599 115.58 757 739 154.5
A 12 194 7903 46.36 757 739 154.5
B 14 167 126170 864.16 763 744 145.1
B 4 80 66211 451.05 763 744 145.1
B 5 70 39911 269.85 763 744 145.1
C 14 48 924500 5477.12 724 726 168.7
C 9 247 36992 215.02 724 726 168.7
C 8 128 13530 75.92 724 726 168.7
D 13 235 2363461 14988.66 654 634 157.6
D 8 112 329290 2084.84 654 634 157.6
D 7 67 286122 1811.0 654 634 157.6

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