ASTROSAT CZTI

Data Quality Report

Orbit 00415

Creation date: 2024-06-27T13:59:31.176148
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_161T03_9000000070_00415cztM0_level2.evt modeM0/AS1P01_161T03_9000000070_00415cztM0_level2_quad_clean.evt
Size (bytes)636,528,96041,313,600
Size607.0 MB 39.4 MB
Events in quadrant A4,855,865246,035
Events in quadrant B4,733,392247,168
Events in quadrant C4,269,159244,860
Events in quadrant D5,154,236232,248

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172350
B0168980
C0155150
D0181410

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A396730.075624%
B396700.000000%
C396700.000000%
D3967591.487270%

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 3967 3967 86 86 2.17% 2.17%
B 3967 3967 54 54 1.36% 1.36%
C 3967 3967 22 22 0.55% 0.55%
D 3967 3967 358 358 9.02% 9.02%

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 0 238 47528 165.34 1239 1228 280.0
A 15 4 8830 27.15 1239 1228 280.0
A 12 243 7440 22.18 1239 1228 280.0
B 0 23 22615 74.1 1211 1219 288.7
B 2 253 13831 43.68 1211 1219 288.7
B 4 184 13258 41.7 1211 1219 288.7
C 1 1 6994 19.32 1084 1123 303.9
C 9 241 3470 7.72 1084 1123 303.9
C 9 206 3160 6.7 1084 1123 303.9
D 13 7 519734 1558.06 1060 1101 332.9
D 13 221 204390 610.72 1060 1101 332.9
D 1 5 160303 478.27 1060 1101 332.9

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