ASTROSAT CZTI

Data Quality Report

Orbit 10536

Creation date: 2024-06-27T16:00:33.839504
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/AS1G07_051T02_9000001526_10536cztM0_level2.evt modeM0/AS1G07_051T02_9000001526_10536cztM0_level2_quad_clean.evt
Size (bytes)1,871,683,200239,402,880
Size1.7 GB 228.3 MB
Events in quadrant A11,961,7441,476,621
Events in quadrant B15,555,8961,468,728
Events in quadrant C11,722,6451,455,890
Events in quadrant D16,047,8951,420,091

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0502413
B0604943
C0500253
D0616643

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04220
B04220
C04220
D04220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2071914176.839133%
B2071919479.397172%
C2071912946.245475%
D2071915667.558280%

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 22124 20722 1118 1118 5.05% 5.40%
B 22124 20722 1402 1402 6.34% 6.77%
C 22124 20722 1056 1056 4.77% 5.10%
D 22124 20722 1329 1329 6.01% 6.41%

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 3 80 150478 216.63 3036 3004 680.8
A 13 251 37940 51.32 3036 3004 680.8
A 0 226 26441 34.43 3036 3004 680.8
B 4 239 3132612 4500.62 3037 2979 695.4
B 0 214 359306 512.42 3037 2979 695.4
B 11 51 234979 333.63 3037 2979 695.4
C 15 48 58403 67.56 2978 3003 820.0
C 14 234 55705 64.27 2978 3003 820.0
C 13 61 20498 21.34 2978 3003 820.0
D 2 16 1869618 2245.77 3001 2959 831.2
D 8 195 1499196 1800.12 3001 2959 831.2
D 1 52 553795 662.71 3001 2959 831.2

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