ASTROSAT CZTI

Data Quality Report

Orbit 47240

Creation date: 2024-06-27T23:33:15.942497
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/AS1C09_005T01_9000006304_47240cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47240cztM0_level2_quad_clean.evt
Size (bytes)533,496,960104,633,280
Size508.8 MB 99.8 MB
Events in quadrant A7,847,557669,059
Events in quadrant B3,382,847729,692
Events in quadrant C2,835,082703,767
Events in quadrant D5,175,543609,301

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0278682
B0144042
C0132952
D0199302

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A654366710.194101%
B6543681.039279%
C6543120.183402%
D65434887.458352%

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 7618 6544 401 401 5.26% 6.13%
B 7617 6543 15 15 0.20% 0.23%
C 7618 6544 3 3 0.04% 0.05%
D 7618 6544 514 514 6.75% 7.85%

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 3660438 25124.29 700 686 145.7
A 9 191 1443371 9904.07 700 686 145.7
A 0 243 12646 82.11 700 686 145.7
B 0 200 131159 922.93 722 698 141.4
B 0 190 123108 865.98 722 698 141.4
B 5 32 82727 580.3 722 698 141.4
C 14 254 35940 211.55 710 714 166.5
C 1 3 12578 71.25 710 714 166.5
C 3 233 6535 34.96 710 714 166.5
D 2 37 1789177 10197.41 686 662 175.4
D 12 33 348418 1982.77 686 662 175.4
D 1 47 176563 1002.92 686 662 175.4

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