ASTROSAT CZTI

Data Quality Report

Orbit 15058

Creation date: 2024-06-27T17:03:10.690135
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_060T01_9000002216_15058cztM0_level2.evt modeM0/AS1T02_060T01_9000002216_15058cztM0_level2_quad_clean.evt
Size (bytes)604,751,04088,606,080
Size576.7 MB 84.5 MB
Events in quadrant A4,211,532537,306
Events in quadrant B5,048,387537,062
Events in quadrant C4,472,720527,190
Events in quadrant D4,022,071507,933

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175634
B0202363
C0180753
D0176263

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82532993.622925%
B82534675.658548%
C82532372.871683%
D82532432.944384%

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 8764 8254 1 1 0.01% 0.01%
B 8764 8254 109 109 1.24% 1.32%
C 8764 8255 0 0 0.00% 0.00%
D 8764 8254 25 25 0.29% 0.30%

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 1 162 103013 484.09 1030 1007 210.7
A 1 178 40273 186.35 1030 1007 210.7
A 15 239 39378 182.1 1030 1007 210.7
B 3 64 497798 2503.49 1019 992 198.4
B 10 245 412990 2076.13 1019 992 198.4
B 10 16 76525 380.62 1019 992 198.4
C 3 233 582948 2479.51 997 1000 234.7
C 13 61 7154 26.22 997 1000 234.7
C 8 222 3135 9.1 997 1000 234.7
D 13 249 76318 304.24 998 966 247.7
D 13 104 75111 299.36 998 966 247.7
D 2 152 56988 226.19 998 966 247.7

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