ASTROSAT CZTI

Data Quality Report

Orbit 44074

Creation date: 2024-06-27T22:59:04.883085
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/AS1A13_029T01_9000005940_44074cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44074cztM0_level2_quad_clean.evt
Size (bytes)586,451,520143,421,120
Size559.3 MB 136.8 MB
Events in quadrant A6,195,932956,673
Events in quadrant B4,171,646984,313
Events in quadrant C4,489,682941,662
Events in quadrant D6,162,473843,708

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250810
B0186941
C0196550
D0244890

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A88772012.264278%
B88772112.376929%
C88771341.509519%
D88774485.046750%

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 8877 8877 10 10 0.11% 0.11%
B 8877 8877 0 0 0.00% 0.00%
C 8877 8877 41 41 0.46% 0.46%
D 8877 8877 322 322 3.63% 3.63%

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 10 83 1310590 5890.06 1055 1031 222.3
A 15 222 736537 3308.12 1055 1031 222.3
A 10 248 45618 200.54 1055 1031 222.3
B 12 111 28081 128.52 1052 1016 210.6
B 14 111 25896 118.14 1052 1016 210.6
B 11 111 25811 117.74 1052 1016 210.6
C 14 254 138459 551.53 1042 1049 249.1
C 15 158 129130 514.09 1042 1049 249.1
C 15 157 74306 294.04 1042 1049 249.1
D 1 52 1017354 3931.93 1024 991 258.5
D 13 249 560797 2165.68 1024 991 258.5
D 5 235 373104 1439.57 1024 991 258.5

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