ASTROSAT CZTI

Data Quality Report

Orbit 32154

Creation date: 2024-06-27T20:37:05.354241
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_131T01_9000004690_32154cztM0_level2.evt modeM0/AS1A09_131T01_9000004690_32154cztM0_level2_quad_clean.evt
Size (bytes)1,097,832,96089,922,240
Size1.0 GB 85.8 MB
Events in quadrant A5,702,712500,852
Events in quadrant B11,758,822462,150
Events in quadrant C8,065,733478,358
Events in quadrant D6,939,816480,342

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027838
B027545
C027431
D027745

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0284544087
B0515718488
C0369955695
D0322774398

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063
B041
C052
D063

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A116753362.877944%
B11355161514.222809%
C115838837.623241%
D116402672.293814%

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 14168 12083 0 0 0.00% 0.00%
B 14168 11750 866 866 6.11% 7.37%
C 14168 11971 175 175 1.24% 1.46%
D 14168 12040 62 62 0.44% 0.51%

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 12 189 92072 314.8 1446 1410 288.0
A 13 6 22216 72.24 1446 1410 288.0
A 13 254 20109 64.93 1446 1410 288.0
B 6 159 2985556 11751.17 1345 1309 254.0
B 10 245 2681925 10555.55 1345 1309 254.0
B 5 172 412293 1618.35 1345 1309 254.0
C 3 233 1911097 6079.54 1351 1355 314.1
C 0 10 450335 1429.3 1351 1355 314.1
C 14 238 270354 856.34 1351 1355 314.1
D 8 195 1014779 3051.51 1402 1360 332.1
D 12 233 397637 1193.23 1402 1360 332.1
D 12 218 148053 441.71 1402 1360 332.1

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