ASTROSAT CZTI

Data Quality Report

Orbit 18050

Creation date: 2024-06-27T17:44:23.639358
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/AS1A06_003T04_9000002682_18050cztM0_level2.evt modeM0/AS1A06_003T04_9000002682_18050cztM0_level2_quad_clean.evt
Size (bytes)478,512,00098,236,800
Size456.3 MB 93.7 MB
Events in quadrant A3,099,278660,960
Events in quadrant B3,461,987658,041
Events in quadrant C3,100,795615,874
Events in quadrant D4,411,734610,166

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128972
B0140302
C0129142
D0171112

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6157931.510476%
B61571041.689134%
C6157831.348059%
D61582133.458915%

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 7442 6159 0 0 0.00% 0.00%
B 7442 6159 24 24 0.32% 0.39%
C 7442 6159 0 0 0.00% 0.00%
D 7443 6160 147 147 1.98% 2.39%

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 14 111 10328 59.52 802 789 160.3
A 0 226 7066 39.17 802 789 160.3
A 12 194 5947 32.18 802 789 160.3
B 3 64 268594 1814.35 790 772 147.6
B 4 216 43954 292.53 790 772 147.6
B 7 220 29241 192.86 790 772 147.6
C 14 238 118424 677.26 753 761 173.7
C 8 208 27944 156.46 753 761 173.7
C 0 207 11769 63.36 753 761 173.7
D 1 52 726144 3878.39 774 753 187.0
D 7 238 266352 1420.06 774 753 187.0
D 5 222 213154 1135.63 774 753 187.0

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