ASTROSAT CZTI

Data Quality Report

Orbit 29021

Creation date: 2024-06-27T19:59:16.957607
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_29021cztM0_level2.evt modeM0/AS1A10_123T02_9000004160_29021cztM0_level2_quad_clean.evt
Size (bytes)545,005,440117,656,640
Size519.8 MB 112.2 MB
Events in quadrant A3,286,189796,117
Events in quadrant B3,361,708829,326
Events in quadrant C3,423,192788,005
Events in quadrant D6,012,389715,171

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138252
B0140202
C0142802
D0221792

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6231570.914781%
B6230651.043339%
C62301191.910112%
D623067310.802568%

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 7521 6232 0 0 0.00% 0.00%
B 7520 6231 3 3 0.04% 0.05%
C 7520 6231 2 2 0.03% 0.03%
D 7520 6231 527 527 7.01% 8.46%

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 10450 57.44 850 836 167.4
A 3 137 7699 41.0 850 836 167.4
A 0 226 7174 37.87 850 836 167.4
B 5 172 24220 148.28 848 827 157.8
B 0 190 19180 116.33 848 827 157.8
B 12 111 18539 112.27 848 827 157.8
C 14 238 134926 698.46 833 840 192.0
C 2 16 15904 78.47 833 840 192.0
C 2 114 15409 75.89 833 840 192.0
D 1 52 2210727 11820.98 802 784 187.0
D 8 195 417770 2230.46 802 784 187.0
D 7 80 295220 1574.94 802 784 187.0

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