ASTROSAT CZTI

Data Quality Report

Orbit 29486

Creation date: 2024-06-27T20:04:35.682153
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/AS1A10_064T03_9000004246_29486cztM0_level2.evt modeM0/AS1A10_064T03_9000004246_29486cztM0_level2_quad_clean.evt
Size (bytes)714,493,44098,487,360
Size681.4 MB 93.9 MB
Events in quadrant A2,887,592692,370
Events in quadrant B2,956,707713,165
Events in quadrant C3,546,533684,280
Events in quadrant D11,867,719498,704

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118051
B0120611
C0143311
D0391051

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5619230.409326%
B5619440.783057%
C56191933.434775%
D5620363364.644128%

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 6984 5620 7 7 0.10% 0.12%
B 6984 5620 5 5 0.07% 0.09%
C 6984 5620 1 1 0.01% 0.02%
D 6985 5621 3413 3413 48.86% 60.72%

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 12 96 44100 296.41 734 720 146.4
A 13 254 10471 66.63 734 720 146.4
A 15 174 6618 40.3 734 720 146.4
B 0 230 31799 230.02 733 716 135.1
B 0 155 16602 117.56 733 716 135.1
B 0 190 15755 111.29 733 716 135.1
C 3 233 482283 2892.27 723 730 166.5
C 14 238 141299 844.28 723 730 166.5
C 7 247 53893 319.3 723 730 166.5
D 8 195 7608157 57230.13 566 551 132.9
D 1 52 1631976 12272.81 566 551 132.9
D 12 33 226511 1699.84 566 551 132.9

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