ASTROSAT CZTI

Data Quality Report

Orbit 15148

Creation date: 2024-06-27T17:04:42.995034
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/AS1G08_035T01_9000002234_15148cztM0_level2.evt modeM0/AS1G08_035T01_9000002234_15148cztM0_level2_quad_clean.evt
Size (bytes)588,902,40099,705,600
Size561.6 MB 95.1 MB
Events in quadrant A4,934,867616,502
Events in quadrant B4,210,071624,976
Events in quadrant C3,934,798624,172
Events in quadrant D4,209,645594,624

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0201813
B0175102
C0165892
D0178402

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80331271.580978%
B80331892.352795%
C8033770.958546%
D80332092.601768%

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 9354 8034 0 0 0.00% 0.00%
B 9354 8034 38 38 0.41% 0.47%
C 9354 8035 0 0 0.00% 0.00%
D 9354 8034 100 100 1.07% 1.24%

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 15 239 1085057 5383.21 985 963 201.4
A 12 189 37600 181.93 985 963 201.4
A 11 29 13352 61.52 985 963 201.4
B 3 64 266128 1391.82 982 957 190.5
B 4 48 24509 123.62 982 957 190.5
B 12 111 22318 112.12 982 957 190.5
C 3 233 191509 857.81 958 961 222.1
C 13 61 7093 27.61 958 961 222.1
C 0 207 4474 15.81 958 961 222.1
D 2 33 339003 1451.14 954 926 233.0
D 10 70 66738 282.49 954 926 233.0
D 2 16 65450 276.96 954 926 233.0

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