ASTROSAT CZTI

Data Quality Report

Orbit 16730

Creation date: 2024-06-27T17:26:55.129497
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_202T01_9000002484_16730cztM0_level2.evt modeM0/AS1A05_202T01_9000002484_16730cztM0_level2_quad_clean.evt
Size (bytes)113,172,48023,302,080
Size107.9 MB 22.2 MB
Events in quadrant A780,880156,300
Events in quadrant B822,096159,789
Events in quadrant C812,844148,664
Events in quadrant D923,111145,448

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031931
B033400
C033960
D037480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A126880.630915%
B1268161.261830%
C1268352.760252%
D1268151.182965%

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 1269 1269 1 1 0.08% 0.08%
B 1269 1269 0 0 0.00% 0.00%
C 1269 1269 0 0 0.00% 0.00%
D 1269 1269 2 2 0.16% 0.16%

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 12582 305.51 199 195 40.5
A 0 226 1836 40.47 199 195 40.5
A 3 1 1795 39.46 199 195 40.5
B 15 35 29270 773.2 194 190 37.6
B 10 16 12885 337.55 194 190 37.6
B 5 236 7873 204.28 194 190 37.6
C 3 233 33749 759.32 188 189 44.2
C 14 238 30367 682.8 188 189 44.2
C 0 207 12265 273.23 188 189 44.2
D 2 16 82267 1718.93 194 189 47.7
D 1 52 34261 713.56 194 189 47.7
D 11 176 22261 462.24 194 189 47.7

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