ASTROSAT CZTI

Data Quality Report

Orbit 21344

Creation date: 2024-06-27T18:26:37.407135
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_108T01_9000003146_21344cztM0_level2.evt modeM0/AS1A05_108T01_9000003146_21344cztM0_level2_quad_clean.evt
Size (bytes)807,459,840145,365,120
Size770.1 MB 138.6 MB
Events in quadrant A5,697,688912,703
Events in quadrant B5,506,192933,258
Events in quadrant C5,432,742888,459
Events in quadrant D7,034,736868,417

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239142
B0238232
C0235502
D0286782

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02340
B02340
C02340
D02340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11562500.432451%
B11563910.786993%
C115631581.366427%
D115632382.058289%

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 12442 11565 0 0 0.00% 0.00%
B 12443 11566 4 4 0.03% 0.03%
C 12443 11565 1 1 0.01% 0.01%
D 12443 11566 184 184 1.48% 1.59%

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 5 168 360943 1305.43 1376 1347 275.5
A 5 16 18342 61.7 1376 1347 275.5
A 13 254 15260 50.51 1376 1347 275.5
B 0 230 53334 197.36 1373 1337 263.5
B 12 111 32877 119.72 1373 1337 263.5
B 3 64 30828 111.94 1373 1337 263.5
C 14 238 210885 674.15 1327 1332 310.8
C 7 247 24660 75.05 1327 1332 310.8
C 10 23 18991 56.81 1327 1332 310.8
D 1 52 958526 2962.98 1331 1293 323.1
D 7 238 321695 991.76 1331 1293 323.1
D 13 174 255286 786.2 1331 1293 323.1

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