ASTROSAT CZTI

Data Quality Report

Orbit 25358

Creation date: 2024-06-27T19:16:45.506907
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/AS1A09_061T02_9000003708_25358cztM0_level2.evt modeM0/AS1A09_061T02_9000003708_25358cztM0_level2_quad_clean.evt
Size (bytes)118,031,04036,014,400
Size112.6 MB 34.3 MB
Events in quadrant A866,967256,252
Events in quadrant B825,532261,828
Events in quadrant C900,358239,094
Events in quadrant D892,228237,039

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A035850
B034420
C036570
D037270

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1284161.246106%
B1284171.323988%
C1283695.378020%
D1283312.416212%

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 1284 1284 0 0 0.00% 0.00%
B 1284 1284 0 0 0.00% 0.00%
C 1283 1283 1 1 0.08% 0.08%
D 1283 1283 3 3 0.23% 0.23%

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 6 16 41716 964.51 213 210 43.0
A 0 226 1866 38.48 213 210 43.0
A 13 254 1699 34.6 213 210 43.0
B 12 111 4090 96.68 211 206 40.2
B 3 112 3773 88.79 211 206 40.2
B 11 111 3750 88.22 211 206 40.2
C 3 233 71482 1494.01 204 205 47.7
C 14 238 34008 708.53 204 205 47.7
C 13 61 1378 24.59 204 205 47.7
D 1 52 47542 934.34 207 202 50.7
D 9 35 43240 849.43 207 202 50.7
D 8 195 11030 213.71 207 202 50.7

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