ASTROSAT CZTI

Data Quality Report

Orbit 46325

Creation date: 2024-06-27T23:21:44.383448
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/AS1T05_200T01_9000006196_46325cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46325cztM0_level2_quad_clean.evt
Size (bytes)699,788,16086,855,040
Size667.4 MB 82.8 MB
Events in quadrant A15,139,37692,866
Events in quadrant B3,432,598742,612
Events in quadrant C3,043,557697,814
Events in quadrant D3,766,637629,807

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0496268
B0145402
C0140232
D0161062

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6694603090.080669%
B66941181.762773%
C6694761.135345%
D66952253.360717%

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 8424 6695 4479 4479 53.17% 66.90%
B 8424 6696 22 22 0.26% 0.33%
C 8424 6696 18 18 0.21% 0.27%
D 8425 6697 147 147 1.74% 2.20%

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 15 223 12908377 235111.06 260 255 54.9
A 10 83 1163037 21179.14 260 255 54.9
A 15 239 42523 769.88 260 255 54.9
B 3 112 268463 1807.52 750 728 148.1
B 5 172 80980 541.79 750 728 148.1
B 5 255 48307 321.21 750 728 148.1
C 12 249 60641 342.83 741 745 174.7
C 12 2 56133 317.02 741 745 174.7
C 1 3 18517 101.72 741 745 174.7
D 13 249 679651 3708.2 729 706 183.1
D 1 52 158778 863.34 729 706 183.1
D 5 171 78461 424.68 729 706 183.1

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