ASTROSAT CZTI

Data Quality Report

Orbit 13615

Creation date: 2024-06-27T16:43:49.365543
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/AS1G08_044T01_9000002014_13615cztM0_level2.evt modeM0/AS1G08_044T01_9000002014_13615cztM0_level2_quad_clean.evt
Size (bytes)325,425,60067,616,640
Size310.4 MB 64.5 MB
Events in quadrant A2,255,639440,042
Events in quadrant B2,474,154431,356
Events in quadrant C2,298,442422,877
Events in quadrant D2,502,317418,397

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098652
B0106411
C098861
D0106501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4771110.230560%
B4771310.649759%
C477190.188640%
D4771310.649759%

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 5787 4773 0 0 0.00% 0.00%
B 5787 4773 0 0 0.00% 0.00%
C 5787 4773 0 0 0.00% 0.00%
D 5787 4773 18 18 0.31% 0.38%

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 1 162 14758 119.49 578 565 118.8
A 15 69 7390 57.46 578 565 118.8
A 0 226 5231 39.28 578 565 118.8
B 0 219 74597 665.92 574 561 111.2
B 0 189 72958 651.18 574 561 111.2
B 0 214 32528 287.53 574 561 111.2
C 3 233 134974 1036.7 554 557 129.7
C 13 61 3961 26.25 554 557 129.7
C 14 234 3075 19.42 554 557 129.7
D 8 195 177871 1323.08 555 539 134.0
D 5 222 134547 999.84 555 539 134.0
D 13 249 30382 222.66 555 539 134.0

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