ASTROSAT CZTI

Data Quality Report

Orbit 15433

Creation date: 2024-06-27T17:08:28.565997
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/AS1T02_080T01_9000002276_15433cztM0_level2.evt modeM0/AS1T02_080T01_9000002276_15433cztM0_level2_quad_clean.evt
Size (bytes)612,144,00099,259,200
Size583.8 MB 94.7 MB
Events in quadrant A3,508,590636,108
Events in quadrant B3,682,150651,189
Events in quadrant C5,025,622635,158
Events in quadrant D5,839,226586,168

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152380
B0155870
C0197190
D0222050

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7145650.909727%
B7145500.699790%
C71441542.155655%
D71444326.047032%

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 7680 7146 32 32 0.42% 0.45%
B 7680 7146 10 10 0.13% 0.14%
C 7679 7145 64 64 0.83% 0.90%
D 7679 7145 394 394 5.13% 5.51%

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 14 238 79009 456.52 850 832 171.2
A 15 69 64903 374.15 850 832 171.2
A 14 237 34795 198.33 850 832 171.2
B 4 142 196783 1206.65 853 833 162.4
B 0 190 27168 162.17 853 833 162.4
B 0 229 25922 154.5 853 833 162.4
C 3 233 1806191 9599.34 815 820 188.1
C 7 247 30153 155.97 815 820 188.1
C 13 61 5938 27.21 815 820 188.1
D 1 52 2120492 10691.43 808 784 198.3
D 5 222 279270 1404.63 808 784 198.3
D 13 122 101173 506.34 808 784 198.3

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