ASTROSAT CZTI

Data Quality Report

Orbit 08038

Creation date: 2024-06-27T15:27:13.887703
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/AS1G05_246T02_9000001106_08038cztM0_level2.evt modeM0/AS1G05_246T02_9000001106_08038cztM0_level2_quad_clean.evt
Size (bytes)593,688,960115,557,120
Size566.2 MB 110.2 MB
Events in quadrant A4,731,988725,210
Events in quadrant B4,385,675752,415
Events in quadrant C3,939,558736,630
Events in quadrant D4,357,363706,536

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01985148
B01877454
C01756522
D01883434

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83165256.313131%
B83125066.087584%
C83223364.037491%
D83183594.315941%

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 8333 8333 116 116 1.39% 1.39%
B 8333 8332 67 67 0.80% 0.80%
C 8333 8333 0 0 0.00% 0.00%
D 8333 8332 17 17 0.20% 0.20%

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 4 2 727853 3537.94 995 967 205.5
A 15 79 162879 788.07 995 967 205.5
A 13 251 9573 41.89 995 967 205.5
B 4 239 242329 1233.65 1008 980 195.6
B 11 51 66079 332.75 1008 980 195.6
B 15 85 64638 325.39 1008 980 195.6
C 1 16 48297 203.84 995 996 232.0
C 13 61 7827 29.44 995 996 232.0
C 8 222 4919 16.91 995 996 232.0
D 13 169 452334 1803.07 980 950 250.3
D 12 233 84538 333.9 980 950 250.3
D 1 52 46357 181.38 980 950 250.3

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