ASTROSAT CZTI

Data Quality Report

Orbit 06986

Creation date: 2024-06-27T15:14:04.925767
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/AS1A02_090T02_9000000956_06986cztM0_level2.evt modeM0/AS1A02_090T02_9000000956_06986cztM0_level2_quad_clean.evt
Size (bytes)664,617,600129,864,960
Size633.8 MB 123.8 MB
Events in quadrant A4,655,014802,140
Events in quadrant B4,847,629813,803
Events in quadrant C4,641,785808,475
Events in quadrant D5,269,794780,040

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214201
B0218241
C0214271
D0226241

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02120
B02120
C02120
D02120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10523590.560677%
B10523830.788748%
C10523370.351611%
D10523610.579683%

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 10838 10524 0 0 0.00% 0.00%
B 10838 10524 2 2 0.02% 0.02%
C 10838 10524 0 0 0.00% 0.00%
D 10838 10524 11 11 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 0 226 11633 42.56 1203 1176 245.7
A 12 194 11102 40.4 1203 1176 245.7
A 8 15 8122 28.27 1203 1176 245.7
B 0 228 36622 152.42 1211 1178 232.5
B 0 214 26204 107.62 1211 1178 232.5
B 12 111 23457 95.8 1211 1178 232.5
C 7 247 49691 178.41 1170 1177 271.9
C 8 128 10504 34.3 1170 1177 271.9
C 13 61 9288 29.83 1170 1177 271.9
D 8 195 599653 2079.91 1168 1130 287.8
D 14 35 77726 266.18 1168 1130 287.8
D 2 136 60619 206.73 1168 1130 287.8

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