Collection of minor changes/fixes

[astrobokonon]

This will probably be easier to just add them as I get them, then strike them thru when they're done.

This might turn out to be a sort of Ship of Theseus issue.

[astrobokonon]

• Add date to clock
• Add back the reference epoch
• Flop sunrise/sunset in the table
• Combine table coordinates when possible (e.g. "RA DEC Epoch Frame" instead of individual entries)

[astrobokonon]

• Add in some Easter eggs for fun (see Consider a more obvious stale data warning NightShift#2)

[astrobokonon]

Adding back in the reference epoch was tricker than I imagined.

I initially was too sloppy when making the XML schema for the TCS topic, and there were some keys that had a bad datatype association that probably worked once and then never again. Specifically, I was storing some of the coordinate-seconds components as xsd:int when they should have been xsd:decimal and for some reason the reference epoch keys were flagged as xsd:dateTime when they really shouldn't have been. Details are in ligmos@4c44c8f.

Technically, I could have abandoned that measurement in place and switched any queries over to the tcs.loisTelemetry topic's set of information. But that would just screw myself in about 3-6 months from now when I run into another as-yet-undiscovered problem, so I had to just suck it up and deal with it now.

Unfortunately, there's no good/easy way to fix the fields in the database selectively. I could have copied the good fields into a new measurement, dropped the old one, then moved it back to the original metric name and let the database fill up again. But that's too much hassle so I just dropped the whole thing and will start fresh from here.

Lesson learned! (hopefully)

[astrobokonon]

• Add tracking rates

Note that this one isn't actually in any TCS status packet, it seems to be only captured as a property/value in the originating target packet. I'll have to snoop the NewScienceTargetSV topic, I think, and see if there's a schema that will actually work for easy parsing. I'm a bit worried that since it's coming from each instrument, there will be some ... heterogeneity.

• deveny packet:

<newScienceTarget>
    <demandRADec>
        <declination>
            <degreesDec>1</degreesDec>
            <minutesArc>39</minutesArc>
            <secondsArc>2.1</secondsArc>
        </declination>
        <equinoxPrefix>B</equinoxPrefix>
        <equinoxYear>2000</equinoxYear>
        <frame>FK4</frame>
        <ra>
            <hours>12</hours>
            <minutesTime>23</minutesTime>
            <secondsTime>49.94</secondsTime>
        </ra>
    </demandRADec>
    <pointingOriginX>8.9</pointingOriginX>
    <pointingOriginY>-2.53</pointingOriginY>
    <scienceTargetConfiguration>
        <fracrate>1</fracrate>
        <rotator>
            <rotPA>180</rotPA>
            <rotatorFrame>Fixed</rotatorFrame>
        </rotator>
        <target class="TCSDataDefinitions.TCSCommand.TargetConfiguration.Target.FixedTarget.RADecTarget">
            <raDecParameters>
                <declination>
                    <degreesDec>1.6508611111111</degreesDec>
                    <minutesArc>0</minutesArc>
                    <secondsArc>0</secondsArc>
                </declination>
                <equinoxPrefix>J</equinoxPrefix>
                <equinoxYear>2000</equinoxYear>
                <frame>FK5</frame>
                <ra>
                    <hours>12.39725</hours>
                    <minutesTime>0</minutesTime>
                    <secondsTime>0</secondsTime>
                </ra>
            </raDecParameters>
            <parallax_Arcsec>0</parallax_Arcsec>
            <properMotion>
                <epochPM_Yr>2000</epochPM_Yr>
                <pmdec_ArcsPYr>0</pmdec_ArcsPYr>
                <pmra_SPYr>0</pmra_SPYr>
            </properMotion>
            <rv_kps>0</rv_kps>
            <targetName>HD107878</targetName>
            <difftrack class="TCSDataDefinitions.TCSCommand.TargetConfiguration.Target.DifftrackRADec">
                <dDec_ArcsPS>0</dDec_ArcsPS>
                <dRA_sps>0</dRA_sps>
            </difftrack>
        </target>
        <targetConfigName>HD107878</targetConfigName>
        <wl_microns>0.5</wl_microns>
        <commandID>193470169</commandID>
        <tcsErrorResponse>
            <status>false</status>
            <code>0</code>
            <source></source>
        </tcsErrorResponse>
    </scienceTargetConfiguration>
    <trackID>58637.224354</trackID>
</newScienceTarget>

[astrobokonon]

• Add current weather values ... somewhere (currently under each weather plot in a separate bokeh table)

[astrobokonon]

• Add in some sort of delimiter between RA/Dec. Probably requires switching to a monospace font so it doesn't jump all over the place every update
• Break out sunrise/sunset/twilight times to a different table
• Remove total focus offset from table