ASTROSAT CZTI

Data Quality Report

Orbit 05390

Creation date: 2024-06-27T14:54:40.322611
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/AS1G05_214T01_9000000684_05390cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05390cztM0_level2_quad_clean.evt
Size (bytes)918,210,24069,857,280
Size875.7 MB 66.6 MB
Events in quadrant A3,973,506399,177
Events in quadrant B4,071,001401,859
Events in quadrant C4,440,158402,966
Events in quadrant D14,770,307339,990

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174542
B0174211
C0180651
D0495667

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82123514.274233%
B82123894.736970%
C82121912.325865%
D8211212925.928632%

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 8432 8213 14 14 0.17% 0.17%
B 8432 8213 7 7 0.08% 0.09%
C 8432 8213 0 0 0.00% 0.00%
D 8432 8213 1837 1837 21.79% 22.37%

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 50 36445 169.79 1001 975 208.9
A 15 174 34256 159.31 1001 975 208.9
A 0 247 28863 133.5 1001 975 208.9
B 15 204 58639 289.02 1017 989 199.5
B 4 48 30301 146.95 1017 989 199.5
B 0 219 24531 118.02 1017 989 199.5
C 1 16 575984 2498.11 981 985 230.2
C 14 67 11446 45.45 981 985 230.2
C 9 247 10312 40.52 981 985 230.2
D 7 237 10471996 46121.33 909 876 227.0
D 4 95 462994 2035.46 909 876 227.0
D 2 33 117930 515.58 909 876 227.0

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