ASTROSAT CZTI

Data Quality Report

Orbit 01292

Creation date: 2024-06-27T14:10:30.268892
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/AS1G04_002T02_9000000230_01292cztM0_level2.evt modeM0/AS1G04_002T02_9000000230_01292cztM0_level2_quad_clean.evt
Size (bytes)1,471,579,200107,441,280
Size1.4 GB 102.5 MB
Events in quadrant A9,008,398712,492
Events in quadrant B11,581,110685,335
Events in quadrant C8,741,177697,935
Events in quadrant D14,753,497646,178

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0319551
B0396540
C0311880
D0490360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7342180.245165%
B73426548.907655%
C734210.013620%
D73426538.894034%

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 7341 7341 431 431 5.87% 5.87%
B 7342 7342 1524 1524 20.76% 20.76%
C 7342 7342 276 276 3.76% 3.76%
D 7342 7342 3416 3416 46.53% 46.53%

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 4 32 86742 149.75 2316 2334 563.7
A 12 243 35706 59.2 2316 2334 563.7
A 11 79 9677 13.03 2316 2334 563.7
B 10 213 2038975 3734.34 2301 2311 545.4
B 8 4 439065 800.81 2301 2311 545.4
B 12 52 136350 245.77 2301 2311 545.4
C 15 241 321580 538.83 2123 2194 592.7
C 3 79 32681 51.43 2123 2194 592.7
C 3 9 32217 50.65 2123 2194 592.7
D 13 169 6297091 9856.3 2048 2127 638.7
D 10 84 481946 751.27 2048 2127 638.7
D 2 88 160767 248.39 2048 2127 638.7

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