ASTROSAT CZTI

Data Quality Report

Orbit 02286

Creation date: 2024-06-27T14:15:41.306572
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/AS1T01_058T01_9000000348_02286cztM0_level2.evt modeM0/AS1T01_058T01_9000000348_02286cztM0_level2_quad_clean.evt
Size (bytes)10,342,0801,981,440
Size9.9 MB 1.9 MB
Events in quadrant A97,14411,304
Events in quadrant B90,62610,655
Events in quadrant C86,07210,129
Events in quadrant D20,4913,583

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12733597094080
B1-1-1
C1-1-1
D1-1-1

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02733597094080
B0-1-1
C0-1-1
D0-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063595927
B066166221
C064416063
D071837099

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A21600.000000%
B19821.010101%
C18900.000000%
D4312.325581%

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 7343 389 0 0 0.00% 0.00%
B 7096 367 0 0 0.00% 0.00%
C 7341 348 0 0 0.00% 0.00%
D 7340 77 0 0 0.00% 0.00%

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 0 226 265 33.3 25 24 7.2
A 12 194 252 31.5 25 24 7.2
A 3 1 97 10.09 25 24 7.2
B 12 111 328 47.67 23 23 6.4
B 4 200 328 47.67 23 23 6.4
B 11 111 301 43.45 23 23 6.4
C 5 234 1101 154.76 21 21 7.0
C 13 61 186 23.64 21 21 7.0
C 2 53 115 13.47 21 21 7.0
D 9 66 1372 582.42 4 4 2.3
D 13 169 113 46.41 4 4 2.3
D 3 238 86 34.91 4 4 2.3

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