ASTROSAT CZTI

Data Quality Report

Orbit 43273

Creation date: 2024-06-27T22:50:01.732281
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/AS1A06_006T01_9000005860_43273cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43273cztM0_level2_quad_clean.evt
Size (bytes)301,590,72083,499,840
Size287.6 MB 79.6 MB
Events in quadrant A3,441,685535,346
Events in quadrant B2,204,881582,995
Events in quadrant C2,513,564557,805
Events in quadrant D2,616,845504,124

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0350
C0350
D0350

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132132
B099632
C0104022
D0112032

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49622565.159210%
B496220.040306%
C4962100.201532%
D49621082.176542%

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 7054 4963 178 178 2.52% 3.59%
B 7054 4963 0 0 0.00% 0.00%
C 7054 4963 6 6 0.09% 0.12%
D 7054 4963 99 99 1.40% 1.99%

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 15 237 579279 5124.58 546 534 112.9
A 10 83 534796 4730.7 546 534 112.9
A 13 248 212983 1881.16 546 534 112.9
B 12 111 13817 122.2 554 536 108.7
B 0 189 13459 118.91 554 536 108.7
B 11 111 12715 112.06 554 536 108.7
C 15 214 210747 1621.36 552 556 129.6
C 14 254 149134 1146.1 552 556 129.6
C 13 61 3590 23.4 552 556 129.6
D 2 249 266629 1971.34 547 531 135.0
D 12 233 137502 1014.72 547 531 135.0
D 1 52 47679 349.28 547 531 135.0

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