ASTROSAT CZTI

Data Quality Report

Orbit 00614

Creation date: 2024-06-27T14:00:35.703602
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/AS1P01_116T01_9000000086_00614cztM0_level2.evt modeM0/AS1P01_116T01_9000000086_00614cztM0_level2_quad_clean.evt
Size (bytes)633,723,84053,205,120
Size604.4 MB 50.7 MB
Events in quadrant A4,924,609333,412
Events in quadrant B5,204,830331,856
Events in quadrant C4,274,994333,287
Events in quadrant D4,513,216322,233

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175451
B0183671
C0156561
D0163481

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4115110.267315%
B4115631.530984%
C411520.048603%
D4115811.968408%

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 4115 4115 140 140 3.40% 3.40%
B 4115 4115 219 219 5.32% 5.32%
C 4115 4115 17 17 0.41% 0.41%
D 4115 4115 170 170 4.13% 4.13%

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 69 93148 336.94 1203 1187 272.9
A 14 79 57977 208.08 1203 1187 272.9
A 0 238 40723 144.86 1203 1187 272.9
B 5 191 256722 898.96 1203 1209 284.2
B 0 220 177743 621.09 1203 1209 284.2
B 7 221 66823 230.85 1203 1209 284.2
C 3 159 22630 71.55 1074 1112 300.7
C 15 241 18466 57.7 1074 1112 300.7
C 5 249 8035 23.02 1074 1112 300.7
D 13 221 130321 383.94 1076 1084 336.6
D 1 4 54115 157.54 1076 1084 336.6
D 12 22 21853 61.7 1076 1084 336.6

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