ASTROSAT CZTI

Data Quality Report

Orbit 31324

Creation date: 2024-06-27T20:26:41.463035
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/AS1A10_053T30_9000004536_31324cztM0_level2.evt modeM0/AS1A10_053T30_9000004536_31324cztM0_level2_quad_clean.evt
Size (bytes)356,402,88048,260,160
Size339.9 MB 46.0 MB
Events in quadrant A2,170,444306,038
Events in quadrant B3,564,552298,436
Events in quadrant C2,233,541284,237
Events in quadrant D2,550,322287,124

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086060
B0132330
C089330
D0101380

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A404630.074147%
B4047812.001483%
C4047250.617742%
D4047130.321226%

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 4046 4046 0 0 0.00% 0.00%
B 4047 4047 35 35 0.86% 0.86%
C 4047 4047 0 0 0.00% 0.00%
D 4047 4047 4 4 0.10% 0.10%

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 13 254 7768 64.09 562 554 112.6
A 3 137 5104 40.42 562 554 112.6
A 0 226 4707 36.9 562 554 112.6
B 6 159 1079316 10532.65 540 527 102.4
B 4 80 164257 1598.56 540 527 102.4
B 0 190 79828 774.25 540 527 102.4
C 3 233 93878 770.77 521 526 121.1
C 14 238 90324 741.42 521 526 121.1
C 2 114 8987 69.86 521 526 121.1
D 8 195 454354 3547.03 539 527 127.9
D 2 250 45878 354.46 539 527 127.9
D 2 234 16291 123.21 539 527 127.9

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