ASTROSAT CZTI

Data Quality Report

Orbit 45535

Creation date: 2024-06-27T23:13:21.947326
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/AS1A13_071T02_9000006106_45535cztM0_level2.fits modeM0/AS1A13_071T02_9000006106_45535cztM0_level2_quad_clean.evt
Size (bytes)351,504,00065,099,520
Size335.2 MB 62.1 MB
Events in quadrant A3,586,212441,320
Events in quadrant B2,506,886448,932
Events in quadrant C2,570,063427,424
Events in quadrant D4,027,156362,888

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134991
B0102061
C0104312
D0147911

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A41221934.682193%
B41222716.574478%
C41212666.454744%
D412164415.627275%

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 4707 4124 5 5 0.11% 0.12%
B 4707 4124 94 94 2.00% 2.28%
C 4706 4123 148 148 3.14% 3.59%
D 4706 4123 418 418 8.88% 10.14%

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 1531007 14795.17 492 482 103.4
A 13 248 151169 1456.65 492 482 103.4
A 3 137 5948 52.84 492 482 103.4
B 15 201 385920 3873.34 486 470 99.5
B 0 155 70522 703.94 486 470 99.5
B 5 172 56564 563.68 486 470 99.5
C 12 2 684834 6089.68 471 473 112.4
C 14 254 41549 365.51 471 473 112.4
C 2 14 9104 76.8 471 473 112.4
D 1 52 1351611 11357.08 459 443 119.0
D 5 171 269479 2261.35 459 443 119.0
D 13 249 254496 2135.41 459 443 119.0

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