ASTROSAT CZTI

Data Quality Report

Orbit 45932

Creation date: 2024-06-27T23:17:51.120269
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_071T03_9000006142_45932cztM0_level2.fits modeM0/AS1A13_071T03_9000006142_45932cztM0_level2_quad_clean.evt
Size (bytes)440,556,48058,167,360
Size420.1 MB 55.5 MB
Events in quadrant A3,657,407402,890
Events in quadrant B5,548,145339,301
Events in quadrant C3,164,892370,470
Events in quadrant D3,626,019365,231

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131930
B0192270
C0123170
D0135440

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A40161303.237052%
B4016106726.568725%
C401645711.379482%
D40161734.307769%

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 4016 4016 105 105 2.61% 2.61%
B 4016 4016 862 862 21.46% 21.46%
C 4016 4016 447 447 11.13% 11.13%
D 4016 4016 184 184 4.58% 4.58%

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 1694618 18437.68 429 421 91.9
A 0 247 266561 2896.36 429 421 91.9
A 0 226 21439 228.74 429 421 91.9
B 3 112 3797199 47652.18 395 384 79.7
B 10 246 58437 728.6 395 384 79.7
B 0 186 44845 558.01 395 384 79.7
C 12 2 763176 7891.39 405 406 96.7
C 14 254 478087 4941.94 405 406 96.7
C 9 54 323007 3337.53 405 406 96.7
D 11 241 991236 9265.37 417 402 106.9
D 1 52 281341 2627.08 417 402 106.9
D 5 171 244275 2280.48 417 402 106.9

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