ASTROSAT CZTI

Data Quality Report

Orbit 24289

Creation date: 2024-06-27T19:04:23.407054
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/AS1A07_047T08_9000003590_24289cztM0_level2.evt modeM0/AS1A07_047T08_9000003590_24289cztM0_level2_quad_clean.evt
Size (bytes)535,538,880141,966,720
Size510.7 MB 135.4 MB
Events in quadrant A3,213,912990,189
Events in quadrant B3,341,7711,012,883
Events in quadrant C3,519,820963,083
Events in quadrant D5,727,171905,059

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130852
B0136062
C0142192
D0212892

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6148220.357840%
B6148530.862069%
C6147981.594274%
D61474206.832601%

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 7553 6149 0 0 0.00% 0.00%
B 7553 6149 6 6 0.08% 0.10%
C 7552 6148 15 15 0.20% 0.24%
D 7552 6147 338 338 4.48% 5.50%

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 13 254 10246 57.28 833 817 164.6
A 0 226 7250 39.08 833 817 164.6
A 3 137 6530 34.71 833 817 164.6
B 12 17 76917 501.99 833 817 151.6
B 12 111 17268 108.52 833 817 151.6
B 11 111 15165 94.65 833 817 151.6
C 14 238 133241 719.54 813 822 184.0
C 2 16 116425 628.16 813 822 184.0
C 7 247 98931 533.11 813 822 184.0
D 1 52 1682841 8787.59 800 781 191.4
D 8 195 947744 4947.22 800 781 191.4
D 12 233 54024 278.16 800 781 191.4

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