ASTROSAT CZTI

Data Quality Report

Orbit 42149

Creation date: 2024-06-27T22:37:32.873304
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/AS1C07_001T11_9000005760_42149cztM0_level2.fits modeM0/AS1C07_001T11_9000005760_42149cztM0_level2_quad_clean.evt
Size (bytes)847,569,600167,814,720
Size808.3 MB 160.0 MB
Events in quadrant A8,740,1931,139,394
Events in quadrant B9,079,9681,050,670
Events in quadrant C4,939,9641,134,408
Events in quadrant D7,777,1031,006,611

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0328933
B0345493
C0217313
D0306133

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02220
B02220
C02220
D02220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A108172952.727189%
B10817127111.750023%
C1081790.083202%
D108175925.472867%

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 13592 10819 106 106 0.78% 0.98%
B 13592 10819 896 896 6.59% 8.28%
C 13592 10819 3 3 0.02% 0.03%
D 13592 10819 529 529 3.89% 4.89%

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 15 223 2669990 11319.62 1157 1133 235.8
A 10 83 1144076 4847.65 1157 1133 235.8
A 12 189 194588 820.52 1157 1133 235.8
B 4 171 3941698 18234.36 1120 1085 216.1
B 0 229 174370 801.84 1120 1085 216.1
B 15 33 149093 684.88 1120 1085 216.1
C 15 214 456375 1719.1 1140 1145 264.8
C 15 159 19305 68.58 1140 1145 264.8
C 12 249 9281 30.72 1140 1145 264.8
D 12 33 965073 3537.06 1121 1086 272.5
D 1 52 853187 3126.53 1121 1086 272.5
D 13 249 563575 2063.88 1121 1086 272.5

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