ASTROSAT CZTI

Data Quality Report

Orbit 21565

Creation date: 2024-06-27T18:29:46.046550
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_009T03_9000003198_21565cztM0_level2.evt modeM0/AS1A06_009T03_9000003198_21565cztM0_level2_quad_clean.evt
Size (bytes)111,093,1203,830,400
Size105.9 MB 3.7 MB
Events in quadrant A774,2723,959
Events in quadrant B805,1164,334
Events in quadrant C804,5354,125
Events in quadrant D888,1563,793

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031272
B032621
C032771
D034571

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A132190.681302%
B1321181.362604%
C1321302.271007%
D1321292.195307%

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 1321 1321 0 0 0.00% 0.00%
B 1321 1321 0 0 0.00% 0.00%
C 1321 1321 0 0 0.00% 0.00%
D 1321 1321 10 10 0.76% 0.76%

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 48 2151 48.1 200 197 40.6
A 13 254 1723 37.56 200 197 40.6
A 0 226 1705 37.12 200 197 40.6
B 0 230 6330 158.0 204 201 38.8
B 12 111 4184 102.68 204 201 38.8
B 11 111 3644 88.75 204 201 38.8
C 14 238 32113 694.74 196 198 45.9
C 3 233 5591 117.4 196 198 45.9
C 0 10 1418 26.56 196 198 45.9
D 1 52 88484 1841.85 192 187 47.9
D 13 153 30642 635.28 192 187 47.9
D 2 136 22879 473.35 192 187 47.9

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