ASTROSAT CZTI

Data Quality Report

Orbit 43969

Creation date: 2024-06-27T22:57:48.787820
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_065T06_9000005924_43969cztM0_level2.fits modeM0/AS1A13_065T06_9000005924_43969cztM0_level2_quad_clean.evt
Size (bytes)298,676,16066,715,200
Size284.8 MB 63.6 MB
Events in quadrant A4,100,209426,726
Events in quadrant B2,032,409461,211
Events in quadrant C2,059,864444,688
Events in quadrant D2,548,769403,078

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0851
C0840
D0840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0101
B0101
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015503172
B08826122
C08949102
D010398123

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A402841810.377358%
B40361233.047572%
C4039721.782619%
D40351794.436183%

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 7487 4041 222 222 2.97% 5.49%
B 7488 4043 3 3 0.04% 0.07%
C 7488 4050 8 8 0.11% 0.20%
D 7488 4046 90 90 1.20% 2.22%

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 1137531 11631.08 464 453 97.8
A 10 83 691781 7071.54 464 453 97.8
A 14 238 448459 4582.62 464 453 97.8
B 0 213 62434 633.96 479 464 97.8
B 5 172 31933 321.93 479 464 97.8
B 0 183 21445 214.64 479 464 97.8
C 14 254 148521 1299.49 476 479 113.9
C 15 157 26807 231.1 476 479 113.9
C 3 233 15988 136.14 476 479 113.9
D 7 204 166667 1378.15 470 455 120.6
D 5 235 135831 1122.47 470 455 120.6
D 4 222 103632 855.49 470 455 120.6

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