ASTROSAT CZTI

Data Quality Report

Orbit 06059

Creation date: 2024-06-27T15:02:15.356273
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/AS1G06_024T01_9000000780_06059cztM0_level2.evt modeM0/AS1G06_024T01_9000000780_06059cztM0_level2_quad_clean.evt
Size (bytes)719,343,360143,614,080
Size686.0 MB 137.0 MB
Events in quadrant A5,121,253906,085
Events in quadrant B6,420,837907,430
Events in quadrant C4,706,010922,488
Events in quadrant D4,821,614883,638

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161
B0161
C0160
D0161

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233291484
B0285932413
C0230341360
D0235581451

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022812
B022822
C02286
D022810

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A105211361.292653%
B104315775.531589%
C10579900.850742%
D105531371.298209%

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 12853 11118 0 0 0.00% 0.00%
B 12853 11069 256 256 1.99% 2.31%
C 12853 11145 3 3 0.02% 0.03%
D 12853 11134 31 31 0.24% 0.28%

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 8 15 405406 1610.75 1214 1187 251.0
A 7 16 27147 103.45 1214 1187 251.0
A 0 226 12221 43.97 1214 1187 251.0
B 3 64 1659790 7254.83 1190 1159 228.6
B 15 204 56119 240.39 1190 1159 228.6
B 0 214 50955 217.81 1190 1159 228.6
C 9 54 64186 229.06 1179 1185 275.0
C 8 128 15333 51.44 1179 1185 275.0
C 14 206 12905 42.61 1179 1185 275.0
D 2 14 86499 290.97 1181 1138 293.4
D 8 195 64618 216.38 1181 1138 293.4
D 7 203 59933 200.41 1181 1138 293.4

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