ASTROSAT CZTI

Data Quality Report

Orbit 16717

Creation date: 2024-06-27T17:26:39.899256
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/AS1A05_059T03_9000002474_16717cztM0_level2.evt modeM0/AS1A05_059T03_9000002474_16717cztM0_level2_quad_clean.evt
Size (bytes)153,743,04035,179,200
Size146.6 MB 33.5 MB
Events in quadrant A1,045,076242,743
Events in quadrant B973,114255,136
Events in quadrant C930,388242,630
Events in quadrant D1,607,565217,569

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041162
B040151
C038531
D057641

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A14391006.949270%
B1439221.528839%
C1439181.250869%
D143924517.025712%

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 1440 1440 58 58 4.03% 4.03%
B 1440 1440 3 3 0.21% 0.21%
C 1440 1440 0 0 0.00% 0.00%
D 1440 1440 146 146 10.14% 10.14%

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 15 174 225377 5147.0 213 209 43.7
A 0 226 2075 42.64 213 209 43.7
A 12 194 1620 32.24 213 209 43.7
B 5 236 28611 686.79 214 210 41.4
B 0 189 27222 653.2 214 210 41.4
B 3 209 19410 464.29 214 210 41.4
C 3 233 83063 1757.44 203 204 47.1
C 14 238 32364 682.11 203 204 47.1
C 0 207 11964 249.43 203 204 47.1
D 1 52 440516 8869.05 197 191 49.6
D 5 222 234653 4722.55 197 191 49.6
D 11 176 109538 2202.47 197 191 49.6

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