ASTROSAT CZTI

Data Quality Report

Orbit 38306

Creation date: 2024-06-27T21:51:03.704442
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/AS1C07_001T12_9000005372_38306cztM0_level2.fits modeM0/AS1C07_001T12_9000005372_38306cztM0_level2_quad_clean.evt
Size (bytes)416,805,12092,056,320
Size397.5 MB 87.8 MB
Events in quadrant A2,898,861631,593
Events in quadrant B3,507,357615,507
Events in quadrant C3,098,034623,711
Events in quadrant D5,484,938521,372

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121423
B0145022
C0128672
D0201962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5652220.389243%
B56522985.272470%
C5652591.043878%
D565269512.296532%

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 7324 5653 13 13 0.18% 0.23%
B 7324 5653 193 193 2.64% 3.41%
C 7324 5653 53 53 0.72% 0.94%
D 7324 5653 491 491 6.70% 8.69%

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 83 402078 3242.52 610 596 123.8
A 12 189 103851 833.93 610 596 123.8
A 13 6 20301 159.14 610 596 123.8
B 5 184 476996 4149.21 597 582 114.8
B 5 172 226612 1968.55 597 582 114.8
B 0 229 206328 1791.89 597 582 114.8
C 14 254 448837 3223.07 597 602 139.1
C 15 214 239880 1720.55 597 602 139.1
C 1 23 31958 225.47 597 602 139.1
D 2 16 2041987 14533.07 571 553 140.5
D 13 138 285683 2029.85 571 553 140.5
D 7 223 263922 1874.94 571 553 140.5

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