ASTROSAT CZTI

Data Quality Report

Orbit 12069

Creation date: 2024-06-27T16:22:05.652152
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/AS1A04_176T01_9000001786_12069cztM0_level2.evt modeM0/AS1A04_176T01_9000001786_12069cztM0_level2_quad_clean.evt
Size (bytes)937,042,560130,014,720
Size893.6 MB 124.0 MB
Events in quadrant A5,908,631825,034
Events in quadrant B9,206,652777,338
Events in quadrant C5,196,965795,206
Events in quadrant D7,317,554772,323

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245723
B0349592
C0229472
D0291432

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02260
B02260
C02260
D02260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A110841841.660051%
B110848017.226633%
C110841040.938289%
D110843633.274991%

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 13360 11085 14 14 0.10% 0.13%
B 13360 11085 447 447 3.35% 4.03%
C 13360 11085 0 0 0.00% 0.00%
D 13360 11085 233 233 1.74% 2.10%

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 13 251 175333 635.51 1375 1350 273.8
A 1 162 127105 459.35 1375 1350 273.8
A 15 239 104552 376.97 1375 1350 273.8
B 4 206 1890114 7576.44 1335 1304 249.3
B 4 239 1774997 7114.68 1335 1304 249.3
B 15 204 168232 669.59 1335 1304 249.3
C 0 207 15583 46.8 1327 1332 304.5
C 14 234 10541 30.24 1327 1332 304.5
C 13 61 9749 27.64 1327 1332 304.5
D 1 52 1690264 5346.35 1318 1278 315.9
D 8 195 242349 763.09 1318 1278 315.9
D 10 199 109859 343.7 1318 1278 315.9

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