ASTROSAT CZTI

Data Quality Report

Orbit 14407

Creation date: 2024-06-27T16:54:43.820215
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/AS1A04_023T02_9000002124_14407cztM0_level2.evt modeM0/AS1A04_023T02_9000002124_14407cztM0_level2_quad_clean.evt
Size (bytes)694,719,36095,716,800
Size662.5 MB 91.3 MB
Events in quadrant A4,170,001596,598
Events in quadrant B4,569,667595,001
Events in quadrant C5,893,538581,610
Events in quadrant D5,844,993549,547

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176993
B0188761
C0235181
D0228901

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82844885.890874%
B82845847.049734%
C82844415.323515%
D828489010.743602%

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 8392 8286 0 0 0.00% 0.00%
B 8392 8286 48 48 0.57% 0.58%
C 8392 8286 33 33 0.39% 0.40%
D 8392 8285 432 432 5.15% 5.21%

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 12 189 64046 292.8 1051 1022 215.2
A 4 2 36084 162.89 1051 1022 215.2
A 8 15 22065 97.76 1051 1022 215.2
B 0 229 199396 970.56 1041 1010 204.4
B 4 173 92650 448.33 1041 1010 204.4
B 0 182 79264 382.84 1041 1010 204.4
C 3 233 1762307 7380.0 1021 1025 238.7
C 0 207 142537 592.95 1021 1025 238.7
C 13 61 7516 27.2 1021 1025 238.7
D 13 122 989574 4081.47 1006 978 242.2
D 10 199 345007 1420.34 1006 978 242.2
D 2 120 296345 1219.44 1006 978 242.2

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