ASTROSAT CZTI

Data Quality Report

Orbit 35047

Creation date: 2022-03-24T12:47:19.345549
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/AS1A10_057T01_9000005022_35047cztM0_level2.evt modeM0/AS1A10_057T01_9000005022_35047cztM0_level2_quad_clean.evt
Size (bytes)409,320,00062,043,840
Size390.4 MB 59.2 MB
Events in quadrant A2,351,702393,587
Events in quadrant B2,564,678399,005
Events in quadrant C2,805,151391,635
Events in quadrant D4,336,661345,177

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102603
B0107932
C0113012
D0164482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A497570.140704%
B4975701.407035%
C4975591.185930%
D49752915.849246%

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 6978 4976 0 0 0.00% 0.00%
B 6978 4976 51 51 0.73% 1.02%
C 6978 4976 60 60 0.86% 1.21%
D 6978 4976 289 289 4.14% 5.81%

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 73316 625.87 579 569 116.2
A 15 169 20633 172.62 579 569 116.2
A 13 6 11731 96.03 579 569 116.2
B 5 172 143547 1298.56 576 562 110.1
B 5 200 106690 963.83 576 562 110.1
B 4 232 44029 394.76 576 562 110.1
C 3 233 241722 1810.44 571 575 133.2
C 15 214 206855 1548.68 571 575 133.2
C 0 10 107586 803.4 571 575 133.2
D 8 195 1155837 8695.22 549 534 132.9
D 13 249 407820 3065.38 549 534 132.9
D 12 227 160498 1203.95 549 534 132.9

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