ASTROSAT CZTI

Data Quality Report

Orbit 04848

Creation date: 2024-06-27T14:47:54.627876
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_002T01_9000000616_04848cztM0_level2.evt modeM0/AS1G05_002T01_9000000616_04848cztM0_level2_quad_clean.evt
Size (bytes)32,633,2808,668,800
Size31.1 MB 8.3 MB
Events in quadrant A220,34255,535
Events in quadrant B242,58855,385
Events in quadrant C254,01654,739
Events in quadrant D234,39553,998

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09851
B010310
C010980
D010600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49000.000000%
B49000.000000%
C49051.020408%
D49030.612245%

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 490 490 0 0 0.00% 0.00%
B 490 490 0 0 0.00% 0.00%
C 490 490 3 3 0.61% 0.61%
D 490 490 3 3 0.61% 0.61%

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 2424 174.02 56 54 13.6
A 12 194 585 38.99 56 54 13.6
A 0 226 561 37.23 56 54 13.6
B 14 167 13465 1042.5 55 54 12.9
B 10 246 5047 388.13 55 54 12.9
B 0 244 2830 215.79 55 54 12.9
C 9 247 47617 3468.98 52 52 13.7
C 14 67 869 59.58 52 52 13.7
C 13 61 479 31.14 52 52 13.7
D 13 235 14990 994.61 52 50 15.0
D 10 15 9251 612.54 52 50 15.0
D 2 136 7796 515.68 52 50 15.0

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