ASTROSAT CZTI

Data Quality Report

Orbit 38132

Creation date: 2024-06-27T21:48:49.631064
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_9000005366_38132cztM0_level2.fits modeM0/AS1C07_001T12_9000005366_38132cztM0_level2_quad_clean.evt
Size (bytes)313,940,16088,992,000
Size299.4 MB 84.9 MB
Events in quadrant A3,131,798601,613
Events in quadrant B2,489,326609,952
Events in quadrant C2,592,744582,339
Events in quadrant D2,997,080531,943

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126243
B0111372
C0110622
D0125312

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5263240.456014%
B5263621.178035%
C526390.171005%
D5263611.159035%

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 7026 5264 16 16 0.23% 0.30%
B 7026 5264 43 43 0.61% 0.82%
C 7026 5264 5 5 0.07% 0.09%
D 7026 5264 56 56 0.80% 1.06%

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 12 16 414136 3569.57 577 566 115.9
A 10 83 371939 3205.37 577 566 115.9
A 12 194 63943 547.01 577 566 115.9
B 5 172 151223 1375.67 571 556 109.5
B 0 229 44216 398.64 571 556 109.5
B 4 171 20183 179.21 571 556 109.5
C 15 214 221926 1700.15 558 561 130.2
C 14 254 95987 732.9 558 561 130.2
C 0 239 52794 401.17 558 561 130.2
D 1 52 303994 2219.73 557 541 136.7
D 13 249 124819 909.08 557 541 136.7
D 2 250 80876 587.64 557 541 136.7

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